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Finding the Fourth Proportional to 319,500.10, 479,250.15 and 97,855.30

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Solution

The fourth proportional to 319,500.10, 479,250.15 and 97,855.30 is: 146,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,500.10 : 479,250.15 = 97,855.30 : x
  2. Step 2: Convert to fraction form
    319,500.10/479,250.15 = 97,855.30/x
  3. Step 3: Cross multiply
    319,500.10x = 479,250.15 × 97,855.30
  4. Step 4: Simplify right side
    319,500.10x = 46,897,167,203.30
  5. Step 5: Solve for x
    x = 46,897,167,203.30/319,500.10
  6. Step 6: Final answer
    x = 146,782.95

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Similar ratio
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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.