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Finding the Fourth Proportional to 488,053.80, 732,080.70 and 172,508.20

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Solution

The fourth proportional to 488,053.80, 732,080.70 and 172,508.20 is: 258,762.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,053.80 : 732,080.70 = 172,508.20 : x
  2. Step 2: Convert to fraction form
    488,053.80/732,080.70 = 172,508.20/x
  3. Step 3: Cross multiply
    488,053.80x = 732,080.70 × 172,508.20
  4. Step 4: Simplify right side
    488,053.80x = 126,289,923,811.74
  5. Step 5: Solve for x
    x = 126,289,923,811.74/488,053.80
  6. Step 6: Final answer
    x = 258,762.30

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1.5x scale

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.