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Finding the Fourth Proportional to 319,123.52, 478,685.92 and 119,435.84

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Solution

The fourth proportional to 319,123.52, 478,685.92 and 119,435.84 is: 179,154.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,123.52 : 478,685.92 = 119,435.84 : x
  2. Step 2: Convert to fraction form
    319,123.52/478,685.92 = 119,435.84/x
  3. Step 3: Cross multiply
    319,123.52x = 478,685.92 × 119,435.84
  4. Step 4: Simplify right side
    319,123.52x = 57,172,254,951.37
  5. Step 5: Solve for x
    x = 57,172,254,951.37/319,123.52
  6. Step 6: Final answer
    x = 179,154.00

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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.