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Finding the Fourth Proportional to 278,482.59, 384,306.39 and 151,158.15

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Solution

The fourth proportional to 278,482.59, 384,306.39 and 151,158.15 is: 208,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,482.59 : 384,306.39 = 151,158.15 : x
  2. Step 2: Convert to fraction form
    278,482.59/384,306.39 = 151,158.15/x
  3. Step 3: Cross multiply
    278,482.59x = 384,306.39 × 151,158.15
  4. Step 4: Simplify right side
    278,482.59x = 58,091,042,945.58
  5. Step 5: Solve for x
    x = 58,091,042,945.58/278,482.59
  6. Step 6: Final answer
    x = 208,598.47

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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.