Home / 278,320.10-417,577.35-100,832.90

Finding the Fourth Proportional to 278,320.10, 417,577.35 and 100,832.90

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Solution

The fourth proportional to 278,320.10, 417,577.35 and 100,832.90 is: 151,284.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,320.10 : 417,577.35 = 100,832.90 : x
  2. Step 2: Convert to fraction form
    278,320.10/417,577.35 = 100,832.90/x
  3. Step 3: Cross multiply
    278,320.10x = 417,577.35 × 100,832.90
  4. Step 4: Simplify right side
    278,320.10x = 42,105,535,174.82
  5. Step 5: Solve for x
    x = 42,105,535,174.82/278,320.10
  6. Step 6: Final answer
    x = 151,284.56

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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.