Home / 278,380.02-417,569.86-100,886.75

Finding the Fourth Proportional to 278,380.02, 417,569.86 and 100,886.75

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Solution

The fourth proportional to 278,380.02, 417,569.86 and 100,886.75 is: 151,330.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,380.02 : 417,569.86 = 100,886.75 : x
  2. Step 2: Convert to fraction form
    278,380.02/417,569.86 = 100,886.75/x
  3. Step 3: Cross multiply
    278,380.02x = 417,569.86 × 100,886.75
  4. Step 4: Simplify right side
    278,380.02x = 42,127,266,073.36
  5. Step 5: Solve for x
    x = 42,127,266,073.36/278,380.02
  6. Step 6: Final answer
    x = 151,330.06

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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.