Home / 317,539.43-438,189.45-172,341.92

Finding the Fourth Proportional to 317,539.43, 438,189.45 and 172,341.92

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Solution

The fourth proportional to 317,539.43, 438,189.45 and 172,341.92 is: 237,823.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,539.43 : 438,189.45 = 172,341.92 : x
  2. Step 2: Convert to fraction form
    317,539.43/438,189.45 = 172,341.92/x
  3. Step 3: Cross multiply
    317,539.43x = 438,189.45 × 172,341.92
  4. Step 4: Simplify right side
    317,539.43x = 75,518,411,136.74
  5. Step 5: Solve for x
    x = 75,518,411,136.74/317,539.43
  6. Step 6: Final answer
    x = 237,823.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.