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Finding the Fourth Proportional to 103,264.43, 154,878.75 and 28,366.74

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Solution

The fourth proportional to 103,264.43, 154,878.75 and 28,366.74 is: 42,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,264.43 : 154,878.75 = 28,366.74 : x
  2. Step 2: Convert to fraction form
    103,264.43/154,878.75 = 28,366.74/x
  3. Step 3: Cross multiply
    103,264.43x = 154,878.75 × 28,366.74
  4. Step 4: Simplify right side
    103,264.43x = 4,393,405,232.78
  5. Step 5: Solve for x
    x = 4,393,405,232.78/103,264.43
  6. Step 6: Final answer
    x = 42,545.20

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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.