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Finding the Fourth Proportional to 247,774.59, 371,808.90 and 90,015.35

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Solution

The fourth proportional to 247,774.59, 371,808.90 and 90,015.35 is: 135,076.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,774.59 : 371,808.90 = 90,015.35 : x
  2. Step 2: Convert to fraction form
    247,774.59/371,808.90 = 90,015.35/x
  3. Step 3: Cross multiply
    247,774.59x = 371,808.90 × 90,015.35
  4. Step 4: Simplify right side
    247,774.59x = 33,468,506,407.57
  5. Step 5: Solve for x
    x = 33,468,506,407.57/247,774.59
  6. Step 6: Final answer
    x = 135,076.43

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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.