Home / 279,827.08-386,150.10-152,499.92

Finding the Fourth Proportional to 279,827.08, 386,150.10 and 152,499.92

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Solution

The fourth proportional to 279,827.08, 386,150.10 and 152,499.92 is: 210,443.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,827.08 : 386,150.10 = 152,499.92 : x
  2. Step 2: Convert to fraction form
    279,827.08/386,150.10 = 152,499.92/x
  3. Step 3: Cross multiply
    279,827.08x = 386,150.10 × 152,499.92
  4. Step 4: Simplify right side
    279,827.08x = 58,887,859,357.99
  5. Step 5: Solve for x
    x = 58,887,859,357.99/279,827.08
  6. Step 6: Final answer
    x = 210,443.75

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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.