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Finding the Fourth Proportional to 247,459.40, 371,189.10 and 123,043.40

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Solution

The fourth proportional to 247,459.40, 371,189.10 and 123,043.40 is: 184,565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,459.40 : 371,189.10 = 123,043.40 : x
  2. Step 2: Convert to fraction form
    247,459.40/371,189.10 = 123,043.40/x
  3. Step 3: Cross multiply
    247,459.40x = 371,189.10 × 123,043.40
  4. Step 4: Simplify right side
    247,459.40x = 45,672,368,906.94
  5. Step 5: Solve for x
    x = 45,672,368,906.94/247,459.40
  6. Step 6: Final answer
    x = 184,565.10

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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.