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Finding the Fourth Proportional to 304,918.93, 457,295.77 and 127,388.80

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Solution

The fourth proportional to 304,918.93, 457,295.77 and 127,388.80 is: 191,048.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,918.93 : 457,295.77 = 127,388.80 : x
  2. Step 2: Convert to fraction form
    304,918.93/457,295.77 = 127,388.80/x
  3. Step 3: Cross multiply
    304,918.93x = 457,295.77 × 127,388.80
  4. Step 4: Simplify right side
    304,918.93x = 58,254,359,385.38
  5. Step 5: Solve for x
    x = 58,254,359,385.38/304,918.93
  6. Step 6: Final answer
    x = 191,048.68

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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.