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Finding the Fourth Proportional to 554.25, 764.76 and 333.21

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Solution

The fourth proportional to 554.25, 764.76 and 333.21 is: 459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.25 : 764.76 = 333.21 : x
  2. Step 2: Convert to fraction form
    554.25/764.76 = 333.21/x
  3. Step 3: Cross multiply
    554.25x = 764.76 × 333.21
  4. Step 4: Simplify right side
    554.25x = 254,824.06
  5. Step 5: Solve for x
    x = 254,824.06/554.25
  6. Step 6: Final answer
    x = 459.76

Related Problems

Find fourth proportional to 277.13, 382.38 and 166.60
Half scale
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Double scale
Find fourth proportional to 555.25, 766.14 and 334.21
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.