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Finding the Fourth Proportional to 610.16, 915.12 and 346.88

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Solution

The fourth proportional to 610.16, 915.12 and 346.88 is: 520.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.16 : 915.12 = 346.88 : x
  2. Step 2: Convert to fraction form
    610.16/915.12 = 346.88/x
  3. Step 3: Cross multiply
    610.16x = 915.12 × 346.88
  4. Step 4: Simplify right side
    610.16x = 317,436.83
  5. Step 5: Solve for x
    x = 317,436.83/610.16
  6. Step 6: Final answer
    x = 520.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.