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Finding the Fourth Proportional to 247,608.50, 371,304.58 and 87,631.26

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Solution

The fourth proportional to 247,608.50, 371,304.58 and 87,631.26 is: 131,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,608.50 : 371,304.58 = 87,631.26 : x
  2. Step 2: Convert to fraction form
    247,608.50/371,304.58 = 87,631.26/x
  3. Step 3: Cross multiply
    247,608.50x = 371,304.58 × 87,631.26
  4. Step 4: Simplify right side
    247,608.50x = 32,537,886,332.65
  5. Step 5: Solve for x
    x = 32,537,886,332.65/247,608.50
  6. Step 6: Final answer
    x = 131,408.60

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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.