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Finding the Fourth Proportional to 492,351.75, 738,527.85 and 155,426.54

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Solution

The fourth proportional to 492,351.75, 738,527.85 and 155,426.54 is: 233,139.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,351.75 : 738,527.85 = 155,426.54 : x
  2. Step 2: Convert to fraction form
    492,351.75/738,527.85 = 155,426.54/x
  3. Step 3: Cross multiply
    492,351.75x = 738,527.85 × 155,426.54
  4. Step 4: Simplify right side
    492,351.75x = 114,786,824,726.50
  5. Step 5: Solve for x
    x = 114,786,824,726.50/492,351.75
  6. Step 6: Final answer
    x = 233,139.87

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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.