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Finding the Fourth Proportional to 555.19, 766.15 and 334.14

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Solution

The fourth proportional to 555.19, 766.15 and 334.14 is: 461.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.19 : 766.15 = 334.14 : x
  2. Step 2: Convert to fraction form
    555.19/766.15 = 334.14/x
  3. Step 3: Cross multiply
    555.19x = 766.15 × 334.14
  4. Step 4: Simplify right side
    555.19x = 256,001.36
  5. Step 5: Solve for x
    x = 256,001.36/555.19
  6. Step 6: Final answer
    x = 461.11

Related Problems

Find fourth proportional to 277.60, 383.08 and 167.07
Half scale
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Double scale
Find fourth proportional to 556.19, 767.53 and 335.14
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.