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Finding the Fourth Proportional to 304,920.43, 457,298.02 and 127,390.30

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Solution

The fourth proportional to 304,920.43, 457,298.02 and 127,390.30 is: 191,050.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,920.43 : 457,298.02 = 127,390.30 : x
  2. Step 2: Convert to fraction form
    304,920.43/457,298.02 = 127,390.30/x
  3. Step 3: Cross multiply
    304,920.43x = 457,298.02 × 127,390.30
  4. Step 4: Simplify right side
    304,920.43x = 58,255,331,957.21
  5. Step 5: Solve for x
    x = 58,255,331,957.21/304,920.43
  6. Step 6: Final answer
    x = 191,050.93

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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.