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Finding the Fourth Proportional to 340,963.61, 511,426.86 and 104,306.29

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Solution

The fourth proportional to 340,963.61, 511,426.86 and 104,306.29 is: 156,453.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,963.61 : 511,426.86 = 104,306.29 : x
  2. Step 2: Convert to fraction form
    340,963.61/511,426.86 = 104,306.29/x
  3. Step 3: Cross multiply
    340,963.61x = 511,426.86 × 104,306.29
  4. Step 4: Simplify right side
    340,963.61x = 53,345,037,094.38
  5. Step 5: Solve for x
    x = 53,345,037,094.38/340,963.61
  6. Step 6: Final answer
    x = 156,453.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.