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Finding the Fourth Proportional to 278,425.01, 384,224.46 and 151,097.87

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Solution

The fourth proportional to 278,425.01, 384,224.46 and 151,097.87 is: 208,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,425.01 : 384,224.46 = 151,097.87 : x
  2. Step 2: Convert to fraction form
    278,425.01/384,224.46 = 151,097.87/x
  3. Step 3: Cross multiply
    278,425.01x = 384,224.46 × 151,097.87
  4. Step 4: Simplify right side
    278,425.01x = 58,055,497,507.90
  5. Step 5: Solve for x
    x = 58,055,497,507.90/278,425.01
  6. Step 6: Final answer
    x = 208,513.95

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1.5x scale

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.