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Finding the Fourth Proportional to 316,456.67, 436,710.69 and 173,225.79

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Solution

The fourth proportional to 316,456.67, 436,710.69 and 173,225.79 is: 239,051.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,456.67 : 436,710.69 = 173,225.79 : x
  2. Step 2: Convert to fraction form
    316,456.67/436,710.69 = 173,225.79/x
  3. Step 3: Cross multiply
    316,456.67x = 436,710.69 × 173,225.79
  4. Step 4: Simplify right side
    316,456.67x = 75,649,554,276.70
  5. Step 5: Solve for x
    x = 75,649,554,276.70/316,456.67
  6. Step 6: Final answer
    x = 239,051.85

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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.