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Finding the Fourth Proportional to 187,339.39, 280,787.04 and 87,292.45

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Solution

The fourth proportional to 187,339.39, 280,787.04 and 87,292.45 is: 130,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,339.39 : 280,787.04 = 87,292.45 : x
  2. Step 2: Convert to fraction form
    187,339.39/280,787.04 = 87,292.45/x
  3. Step 3: Cross multiply
    187,339.39x = 280,787.04 × 87,292.45
  4. Step 4: Simplify right side
    187,339.39x = 24,510,588,649.85
  5. Step 5: Solve for x
    x = 24,510,588,649.85/187,339.39
  6. Step 6: Final answer
    x = 130,835.21

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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.