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Finding the Fourth Proportional to 486,980.88, 730,403.28 and 167,127.72

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Solution

The fourth proportional to 486,980.88, 730,403.28 and 167,127.72 is: 250,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,980.88 : 730,403.28 = 167,127.72 : x
  2. Step 2: Convert to fraction form
    486,980.88/730,403.28 = 167,127.72/x
  3. Step 3: Cross multiply
    486,980.88x = 730,403.28 × 167,127.72
  4. Step 4: Simplify right side
    486,980.88x = 122,070,634,866.92
  5. Step 5: Solve for x
    x = 122,070,634,866.92/486,980.88
  6. Step 6: Final answer
    x = 250,668.23

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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.