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Finding the Fourth Proportional to 316,489.98, 436,756.14 and 173,250.12

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Solution

The fourth proportional to 316,489.98, 436,756.14 and 173,250.12 is: 239,085.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,489.98 : 436,756.14 = 173,250.12 : x
  2. Step 2: Convert to fraction form
    316,489.98/436,756.14 = 173,250.12/x
  3. Step 3: Cross multiply
    316,489.98x = 436,756.14 × 173,250.12
  4. Step 4: Simplify right side
    316,489.98x = 75,668,053,665.74
  5. Step 5: Solve for x
    x = 75,668,053,665.74/316,489.98
  6. Step 6: Final answer
    x = 239,085.15

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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.