Home / 278,674.10-384,568.08-151,349.69

Finding the Fourth Proportional to 278,674.10, 384,568.08 and 151,349.69

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Solution

The fourth proportional to 278,674.10, 384,568.08 and 151,349.69 is: 208,861.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,674.10 : 384,568.08 = 151,349.69 : x
  2. Step 2: Convert to fraction form
    278,674.10/384,568.08 = 151,349.69/x
  3. Step 3: Cross multiply
    278,674.10x = 384,568.08 × 151,349.69
  4. Step 4: Simplify right side
    278,674.10x = 58,204,259,691.90
  5. Step 5: Solve for x
    x = 58,204,259,691.90/278,674.10
  6. Step 6: Final answer
    x = 208,861.39

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Half scale
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Double scale
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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.