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Finding the Fourth Proportional to 345,527.96, 518,318.19 and 117,752.79

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Solution

The fourth proportional to 345,527.96, 518,318.19 and 117,752.79 is: 176,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,527.96 : 518,318.19 = 117,752.79 : x
  2. Step 2: Convert to fraction form
    345,527.96/518,318.19 = 117,752.79/x
  3. Step 3: Cross multiply
    345,527.96x = 518,318.19 × 117,752.79
  4. Step 4: Simplify right side
    345,527.96x = 61,033,412,391.49
  5. Step 5: Solve for x
    x = 61,033,412,391.49/345,527.96
  6. Step 6: Final answer
    x = 176,638.13

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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.