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Finding the Fourth Proportional to 567.57, 783.25 and 346.49

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Solution

The fourth proportional to 567.57, 783.25 and 346.49 is: 478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.57 : 783.25 = 346.49 : x
  2. Step 2: Convert to fraction form
    567.57/783.25 = 346.49/x
  3. Step 3: Cross multiply
    567.57x = 783.25 × 346.49
  4. Step 4: Simplify right side
    567.57x = 271,384.38
  5. Step 5: Solve for x
    x = 271,384.38/567.57
  6. Step 6: Final answer
    x = 478.15

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Double scale
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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.