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Finding the Fourth Proportional to 487,148.70, 730,706.58 and 171,597.36

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Solution

The fourth proportional to 487,148.70, 730,706.58 and 171,597.36 is: 257,390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,148.70 : 730,706.58 = 171,597.36 : x
  2. Step 2: Convert to fraction form
    487,148.70/730,706.58 = 171,597.36/x
  3. Step 3: Cross multiply
    487,148.70x = 730,706.58 × 171,597.36
  4. Step 4: Simplify right side
    487,148.70x = 125,387,320,062.63
  5. Step 5: Solve for x
    x = 125,387,320,062.63/487,148.70
  6. Step 6: Final answer
    x = 257,390.24

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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.