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Finding the Fourth Proportional to 610.32, 915.58 and 199.58

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Solution

The fourth proportional to 610.32, 915.58 and 199.58 is: 299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.32 : 915.58 = 199.58 : x
  2. Step 2: Convert to fraction form
    610.32/915.58 = 199.58/x
  3. Step 3: Cross multiply
    610.32x = 915.58 × 199.58
  4. Step 4: Simplify right side
    610.32x = 182,731.46
  5. Step 5: Solve for x
    x = 182,731.46/610.32
  6. Step 6: Final answer
    x = 299.40

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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.