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Finding the Fourth Proportional to 228,209.88, 342,314.86 and 86,016.62

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Solution

The fourth proportional to 228,209.88, 342,314.86 and 86,016.62 is: 129,024.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,209.88 : 342,314.86 = 86,016.62 : x
  2. Step 2: Convert to fraction form
    228,209.88/342,314.86 = 86,016.62/x
  3. Step 3: Cross multiply
    228,209.88x = 342,314.86 × 86,016.62
  4. Step 4: Simplify right side
    228,209.88x = 29,444,767,232.97
  5. Step 5: Solve for x
    x = 29,444,767,232.97/228,209.88
  6. Step 6: Final answer
    x = 129,024.95

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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.