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Finding the Fourth Proportional to 216,937.60, 325,600.80 and 187,388.80

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Solution

The fourth proportional to 216,937.60, 325,600.80 and 187,388.80 is: 281,251.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,937.60 : 325,600.80 = 187,388.80 : x
  2. Step 2: Convert to fraction form
    216,937.60/325,600.80 = 187,388.80/x
  3. Step 3: Cross multiply
    216,937.60x = 325,600.80 × 187,388.80
  4. Step 4: Simplify right side
    216,937.60x = 61,013,943,191.04
  5. Step 5: Solve for x
    x = 61,013,943,191.04/216,937.60
  6. Step 6: Final answer
    x = 281,251.12

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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.