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Finding the Fourth Proportional to 319,124.52, 478,687.42 and 119,436.84

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Solution

The fourth proportional to 319,124.52, 478,687.42 and 119,436.84 is: 179,155.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,124.52 : 478,687.42 = 119,436.84 : x
  2. Step 2: Convert to fraction form
    319,124.52/478,687.42 = 119,436.84/x
  3. Step 3: Cross multiply
    319,124.52x = 478,687.42 × 119,436.84
  4. Step 4: Simplify right side
    319,124.52x = 57,172,912,792.55
  5. Step 5: Solve for x
    x = 57,172,912,792.55/319,124.52
  6. Step 6: Final answer
    x = 179,155.50

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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.