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Finding the Fourth Proportional to 316,726.56, 437,083.20 and 173,486.88

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Solution

The fourth proportional to 316,726.56, 437,083.20 and 173,486.88 is: 239,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,726.56 : 437,083.20 = 173,486.88 : x
  2. Step 2: Convert to fraction form
    316,726.56/437,083.20 = 173,486.88/x
  3. Step 3: Cross multiply
    316,726.56x = 437,083.20 × 173,486.88
  4. Step 4: Simplify right side
    316,726.56x = 75,828,200,668.42
  5. Step 5: Solve for x
    x = 75,828,200,668.42/316,726.56
  6. Step 6: Final answer
    x = 239,412.19

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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.