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Finding the Fourth Proportional to 304,849.80, 457,274.70 and 127,355.40

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Solution

The fourth proportional to 304,849.80, 457,274.70 and 127,355.40 is: 191,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,849.80 : 457,274.70 = 127,355.40 : x
  2. Step 2: Convert to fraction form
    304,849.80/457,274.70 = 127,355.40/x
  3. Step 3: Cross multiply
    304,849.80x = 457,274.70 × 127,355.40
  4. Step 4: Simplify right side
    304,849.80x = 58,236,402,328.38
  5. Step 5: Solve for x
    x = 58,236,402,328.38/304,849.80
  6. Step 6: Final answer
    x = 191,033.10

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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.