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Finding the Fourth Proportional to 218,047.65, 300,895.88 and 127,411.89

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Solution

The fourth proportional to 218,047.65, 300,895.88 and 127,411.89 is: 175,822.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,047.65 : 300,895.88 = 127,411.89 : x
  2. Step 2: Convert to fraction form
    218,047.65/300,895.88 = 127,411.89/x
  3. Step 3: Cross multiply
    218,047.65x = 300,895.88 × 127,411.89
  4. Step 4: Simplify right side
    218,047.65x = 38,337,712,126.95
  5. Step 5: Solve for x
    x = 38,337,712,126.95/218,047.65
  6. Step 6: Final answer
    x = 175,822.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.