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Finding the Fourth Proportional to 500,129.76, 750,272.40 and 167,628

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Solution

The fourth proportional to 500,129.76, 750,272.40 and 167,628 is: 251,468.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,129.76 : 750,272.40 = 167,628 : x
  2. Step 2: Convert to fraction form
    500,129.76/750,272.40 = 167,628/x
  3. Step 3: Cross multiply
    500,129.76x = 750,272.40 × 167,628
  4. Step 4: Simplify right side
    500,129.76x = 125,766,661,867.20
  5. Step 5: Solve for x
    x = 125,766,661,867.20/500,129.76
  6. Step 6: Final answer
    x = 251,468.06

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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.