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Finding the Fourth Proportional to 318,737.28, 478,152 and 97,092.48

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Solution

The fourth proportional to 318,737.28, 478,152 and 97,092.48 is: 145,652.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,737.28 : 478,152 = 97,092.48 : x
  2. Step 2: Convert to fraction form
    318,737.28/478,152 = 97,092.48/x
  3. Step 3: Cross multiply
    318,737.28x = 478,152 × 97,092.48
  4. Step 4: Simplify right side
    318,737.28x = 46,424,963,496.96
  5. Step 5: Solve for x
    x = 46,424,963,496.96/318,737.28
  6. Step 6: Final answer
    x = 145,652.76

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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.