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Finding the Fourth Proportional to 238,307.17, 328,869.62 and 130,879.52

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Solution

The fourth proportional to 238,307.17, 328,869.62 and 130,879.52 is: 180,616.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,307.17 : 328,869.62 = 130,879.52 : x
  2. Step 2: Convert to fraction form
    238,307.17/328,869.62 = 130,879.52/x
  3. Step 3: Cross multiply
    238,307.17x = 328,869.62 × 130,879.52
  4. Step 4: Simplify right side
    238,307.17x = 43,042,298,008.18
  5. Step 5: Solve for x
    x = 43,042,298,008.18/238,307.17
  6. Step 6: Final answer
    x = 180,616.88

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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.