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Finding the Fourth Proportional to 259,295.40, 388,787.52 and 101,335.68

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Solution

The fourth proportional to 259,295.40, 388,787.52 and 101,335.68 is: 151,942.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,295.40 : 388,787.52 = 101,335.68 : x
  2. Step 2: Convert to fraction form
    259,295.40/388,787.52 = 101,335.68/x
  3. Step 3: Cross multiply
    259,295.40x = 388,787.52 × 101,335.68
  4. Step 4: Simplify right side
    259,295.40x = 39,398,047,714.71
  5. Step 5: Solve for x
    x = 39,398,047,714.71/259,295.40
  6. Step 6: Final answer
    x = 151,942.72

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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.