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Finding the Fourth Proportional to 215,225.70, 322,073.10 and 187,450.80

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Solution

The fourth proportional to 215,225.70, 322,073.10 and 187,450.80 is: 280,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,225.70 : 322,073.10 = 187,450.80 : x
  2. Step 2: Convert to fraction form
    215,225.70/322,073.10 = 187,450.80/x
  3. Step 3: Cross multiply
    215,225.70x = 322,073.10 × 187,450.80
  4. Step 4: Simplify right side
    215,225.70x = 60,372,860,253.48
  5. Step 5: Solve for x
    x = 60,372,860,253.48/215,225.70
  6. Step 6: Final answer
    x = 280,509.53

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1.5x scale

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.