Home / 278,008.72-416,855.09-109,437.76

Finding the Fourth Proportional to 278,008.72, 416,855.09 and 109,437.76

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Solution

The fourth proportional to 278,008.72, 416,855.09 and 109,437.76 is: 164,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,008.72 : 416,855.09 = 109,437.76 : x
  2. Step 2: Convert to fraction form
    278,008.72/416,855.09 = 109,437.76/x
  3. Step 3: Cross multiply
    278,008.72x = 416,855.09 × 109,437.76
  4. Step 4: Simplify right side
    278,008.72x = 45,619,687,294.20
  5. Step 5: Solve for x
    x = 45,619,687,294.20/278,008.72
  6. Step 6: Final answer
    x = 164,094.45

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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.