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Finding the Fourth Proportional to 238,174.71, 328,679.78 and 130,746.57

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Solution

The fourth proportional to 238,174.71, 328,679.78 and 130,746.57 is: 180,429.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,174.71 : 328,679.78 = 130,746.57 : x
  2. Step 2: Convert to fraction form
    238,174.71/328,679.78 = 130,746.57/x
  3. Step 3: Cross multiply
    238,174.71x = 328,679.78 × 130,746.57
  4. Step 4: Simplify right side
    238,174.71x = 42,973,753,209.62
  5. Step 5: Solve for x
    x = 42,973,753,209.62/238,174.71
  6. Step 6: Final answer
    x = 180,429.54

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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.