Home / 278,224.56-383,531.27-217,690.08

Finding the Fourth Proportional to 278,224.56, 383,531.27 and 217,690.08

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Solution

The fourth proportional to 278,224.56, 383,531.27 and 217,690.08 is: 300,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,224.56 : 383,531.27 = 217,690.08 : x
  2. Step 2: Convert to fraction form
    278,224.56/383,531.27 = 217,690.08/x
  3. Step 3: Cross multiply
    278,224.56x = 383,531.27 × 217,690.08
  4. Step 4: Simplify right side
    278,224.56x = 83,490,951,760.35
  5. Step 5: Solve for x
    x = 83,490,951,760.35/278,224.56
  6. Step 6: Final answer
    x = 300,084.77

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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.