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Finding the Fourth Proportional to 630,035.88, 945,057.23 and 156,721.29

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Solution

The fourth proportional to 630,035.88, 945,057.23 and 156,721.29 is: 235,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,035.88 : 945,057.23 = 156,721.29 : x
  2. Step 2: Convert to fraction form
    630,035.88/945,057.23 = 156,721.29/x
  3. Step 3: Cross multiply
    630,035.88x = 945,057.23 × 156,721.29
  4. Step 4: Simplify right side
    630,035.88x = 148,110,587,425.82
  5. Step 5: Solve for x
    x = 148,110,587,425.82/630,035.88
  6. Step 6: Final answer
    x = 235,082.78

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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.