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Finding the Fourth Proportional to 488,038.80, 732,058.20 and 172,493.20

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Solution

The fourth proportional to 488,038.80, 732,058.20 and 172,493.20 is: 258,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,038.80 : 732,058.20 = 172,493.20 : x
  2. Step 2: Convert to fraction form
    488,038.80/732,058.20 = 172,493.20/x
  3. Step 3: Cross multiply
    488,038.80x = 732,058.20 × 172,493.20
  4. Step 4: Simplify right side
    488,038.80x = 126,275,061,504.24
  5. Step 5: Solve for x
    x = 126,275,061,504.24/488,038.80
  6. Step 6: Final answer
    x = 258,739.80

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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.