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Finding the Fourth Proportional to 100,431.96, 150,648.80 and 25,552.17

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Solution

The fourth proportional to 100,431.96, 150,648.80 and 25,552.17 is: 38,328.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,431.96 : 150,648.80 = 25,552.17 : x
  2. Step 2: Convert to fraction form
    100,431.96/150,648.80 = 25,552.17/x
  3. Step 3: Cross multiply
    100,431.96x = 150,648.80 × 25,552.17
  4. Step 4: Simplify right side
    100,431.96x = 3,849,403,620.14
  5. Step 5: Solve for x
    x = 3,849,403,620.14/100,431.96
  6. Step 6: Final answer
    x = 38,328.47

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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.