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Finding the Fourth Proportional to 318,737.45, 439,856.69 and 175,497.53

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Solution

The fourth proportional to 318,737.45, 439,856.69 and 175,497.53 is: 242,186.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,737.45 : 439,856.69 = 175,497.53 : x
  2. Step 2: Convert to fraction form
    318,737.45/439,856.69 = 175,497.53/x
  3. Step 3: Cross multiply
    318,737.45x = 439,856.69 × 175,497.53
  4. Step 4: Simplify right side
    318,737.45x = 77,193,759,572.20
  5. Step 5: Solve for x
    x = 77,193,759,572.20/318,737.45
  6. Step 6: Final answer
    x = 242,186.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.