Home / 278,655.12-384,545.52-151,330.56

Finding the Fourth Proportional to 278,655.12, 384,545.52 and 151,330.56

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Solution

The fourth proportional to 278,655.12, 384,545.52 and 151,330.56 is: 208,836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,655.12 : 384,545.52 = 151,330.56 : x
  2. Step 2: Convert to fraction form
    278,655.12/384,545.52 = 151,330.56/x
  3. Step 3: Cross multiply
    278,655.12x = 384,545.52 × 151,330.56
  4. Step 4: Simplify right side
    278,655.12x = 58,193,488,887.09
  5. Step 5: Solve for x
    x = 58,193,488,887.09/278,655.12
  6. Step 6: Final answer
    x = 208,836.96

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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.