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Finding the Fourth Proportional to 238,098.57, 328,565.68 and 130,670.39

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Solution

The fourth proportional to 238,098.57, 328,565.68 and 130,670.39 is: 180,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,098.57 : 328,565.68 = 130,670.39 : x
  2. Step 2: Convert to fraction form
    238,098.57/328,565.68 = 130,670.39/x
  3. Step 3: Cross multiply
    238,098.57x = 328,565.68 × 130,670.39
  4. Step 4: Simplify right side
    238,098.57x = 42,933,803,576.71
  5. Step 5: Solve for x
    x = 42,933,803,576.71/238,098.57
  6. Step 6: Final answer
    x = 180,319.45

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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.