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Finding the Fourth Proportional to 653,614.18, 980,142.63 and 248,737.30

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Solution

The fourth proportional to 653,614.18, 980,142.63 and 248,737.30 is: 372,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,614.18 : 980,142.63 = 248,737.30 : x
  2. Step 2: Convert to fraction form
    653,614.18/980,142.63 = 248,737.30/x
  3. Step 3: Cross multiply
    653,614.18x = 980,142.63 × 248,737.30
  4. Step 4: Simplify right side
    653,614.18x = 243,798,031,401.10
  5. Step 5: Solve for x
    x = 243,798,031,401.10/653,614.18
  6. Step 6: Final answer
    x = 372,999.91

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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.