Home / 238,559.40-329,214.56-129,663.72

Finding the Fourth Proportional to 238,559.40, 329,214.56 and 129,663.72

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Solution

The fourth proportional to 238,559.40, 329,214.56 and 129,663.72 is: 178,937.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,559.40 : 329,214.56 = 129,663.72 : x
  2. Step 2: Convert to fraction form
    238,559.40/329,214.56 = 129,663.72/x
  3. Step 3: Cross multiply
    238,559.40x = 329,214.56 × 129,663.72
  4. Step 4: Simplify right side
    238,559.40x = 42,687,184,527.76
  5. Step 5: Solve for x
    x = 42,687,184,527.76/238,559.40
  6. Step 6: Final answer
    x = 178,937.34

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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.