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Finding the Fourth Proportional to 316,527.82, 436,806.29 and 173,290.27

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Solution

The fourth proportional to 316,527.82, 436,806.29 and 173,290.27 is: 239,139.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,527.82 : 436,806.29 = 173,290.27 : x
  2. Step 2: Convert to fraction form
    316,527.82/436,806.29 = 173,290.27/x
  3. Step 3: Cross multiply
    316,527.82x = 436,806.29 × 173,290.27
  4. Step 4: Simplify right side
    316,527.82x = 75,694,279,065.35
  5. Step 5: Solve for x
    x = 75,694,279,065.35/316,527.82
  6. Step 6: Final answer
    x = 239,139.42

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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.