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Finding the Fourth Proportional to 555.79, 766.98 and 334.75

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Solution

The fourth proportional to 555.79, 766.98 and 334.75 is: 461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.79 : 766.98 = 334.75 : x
  2. Step 2: Convert to fraction form
    555.79/766.98 = 334.75/x
  3. Step 3: Cross multiply
    555.79x = 766.98 × 334.75
  4. Step 4: Simplify right side
    555.79x = 256,746.56
  5. Step 5: Solve for x
    x = 256,746.56/555.79
  6. Step 6: Final answer
    x = 461.95

Related Problems

Find fourth proportional to 277.89, 383.49 and 167.38
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Double scale
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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.