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Finding the Fourth Proportional to 304,920.93, 457,298.78 and 127,390.80

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Solution

The fourth proportional to 304,920.93, 457,298.78 and 127,390.80 is: 191,051.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,920.93 : 457,298.78 = 127,390.80 : x
  2. Step 2: Convert to fraction form
    304,920.93/457,298.78 = 127,390.80/x
  3. Step 3: Cross multiply
    304,920.93x = 457,298.78 × 127,390.80
  4. Step 4: Simplify right side
    304,920.93x = 58,255,656,786.27
  5. Step 5: Solve for x
    x = 58,255,656,786.27/304,920.93
  6. Step 6: Final answer
    x = 191,051.68

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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.