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Finding the Fourth Proportional to 487,292.40, 730,912.56 and 154,842.48

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Solution

The fourth proportional to 487,292.40, 730,912.56 and 154,842.48 is: 232,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,292.40 : 730,912.56 = 154,842.48 : x
  2. Step 2: Convert to fraction form
    487,292.40/730,912.56 = 154,842.48/x
  3. Step 3: Cross multiply
    487,292.40x = 730,912.56 × 154,842.48
  4. Step 4: Simplify right side
    487,292.40x = 113,176,313,453.55
  5. Step 5: Solve for x
    x = 113,176,313,453.55/487,292.40
  6. Step 6: Final answer
    x = 232,255.45

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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.