Home / 278,824.41-384,781.19-151,502.13

Finding the Fourth Proportional to 278,824.41, 384,781.19 and 151,502.13

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Solution

The fourth proportional to 278,824.41, 384,781.19 and 151,502.13 is: 209,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,824.41 : 384,781.19 = 151,502.13 : x
  2. Step 2: Convert to fraction form
    278,824.41/384,781.19 = 151,502.13/x
  3. Step 3: Cross multiply
    278,824.41x = 384,781.19 × 151,502.13
  4. Step 4: Simplify right side
    278,824.41x = 58,295,169,111.42
  5. Step 5: Solve for x
    x = 58,295,169,111.42/278,824.41
  6. Step 6: Final answer
    x = 209,074.84

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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.