Home / 278,473.48-384,293.79-151,149.10

Finding the Fourth Proportional to 278,473.48, 384,293.79 and 151,149.10

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Solution

The fourth proportional to 278,473.48, 384,293.79 and 151,149.10 is: 208,585.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,473.48 : 384,293.79 = 151,149.10 : x
  2. Step 2: Convert to fraction form
    278,473.48/384,293.79 = 151,149.10/x
  3. Step 3: Cross multiply
    278,473.48x = 384,293.79 × 151,149.10
  4. Step 4: Simplify right side
    278,473.48x = 58,085,660,494.09
  5. Step 5: Solve for x
    x = 58,085,660,494.09/278,473.48
  6. Step 6: Final answer
    x = 208,585.97

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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.