Home / 278,691.09-384,595.73-151,366.71

Finding the Fourth Proportional to 278,691.09, 384,595.73 and 151,366.71

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Solution

The fourth proportional to 278,691.09, 384,595.73 and 151,366.71 is: 208,887.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,691.09 : 384,595.73 = 151,366.71 : x
  2. Step 2: Convert to fraction form
    278,691.09/384,595.73 = 151,366.71/x
  3. Step 3: Cross multiply
    278,691.09x = 384,595.73 × 151,366.71
  4. Step 4: Simplify right side
    278,691.09x = 58,214,990,330.15
  5. Step 5: Solve for x
    x = 58,214,990,330.15/278,691.09
  6. Step 6: Final answer
    x = 208,887.16

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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.