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Finding the Fourth Proportional to 280,779.28, 386,499 and 244,906.81

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Solution

The fourth proportional to 280,779.28, 386,499 and 244,906.81 is: 337,119.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,779.28 : 386,499 = 244,906.81 : x
  2. Step 2: Convert to fraction form
    280,779.28/386,499 = 244,906.81/x
  3. Step 3: Cross multiply
    280,779.28x = 386,499 × 244,906.81
  4. Step 4: Simplify right side
    280,779.28x = 94,656,237,158.19
  5. Step 5: Solve for x
    x = 94,656,237,158.19/280,779.28
  6. Step 6: Final answer
    x = 337,119.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.