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Finding the Fourth Proportional to 554.76, 765.63 and 333.72

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Solution

The fourth proportional to 554.76, 765.63 and 333.72 is: 460.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.76 : 765.63 = 333.72 : x
  2. Step 2: Convert to fraction form
    554.76/765.63 = 333.72/x
  3. Step 3: Cross multiply
    554.76x = 765.63 × 333.72
  4. Step 4: Simplify right side
    554.76x = 255,506.04
  5. Step 5: Solve for x
    x = 255,506.04/554.76
  6. Step 6: Final answer
    x = 460.57

Related Problems

Find fourth proportional to 277.38, 382.82 and 166.86
Half scale
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Double scale
Find fourth proportional to 555.76, 767.01 and 334.72
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.