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Finding the Fourth Proportional to 488,494.80, 732,871.80 and 172,918.80

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Solution

The fourth proportional to 488,494.80, 732,871.80 and 172,918.80 is: 259,424.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,494.80 : 732,871.80 = 172,918.80 : x
  2. Step 2: Convert to fraction form
    488,494.80/732,871.80 = 172,918.80/x
  3. Step 3: Cross multiply
    488,494.80x = 732,871.80 × 172,918.80
  4. Step 4: Simplify right side
    488,494.80x = 126,727,312,209.84
  5. Step 5: Solve for x
    x = 126,727,312,209.84/488,494.80
  6. Step 6: Final answer
    x = 259,424.08

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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.