Home / 279,340.12-385,489.38-152,012.92

Finding the Fourth Proportional to 279,340.12, 385,489.38 and 152,012.92

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Solution

The fourth proportional to 279,340.12, 385,489.38 and 152,012.92 is: 209,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,340.12 : 385,489.38 = 152,012.92 : x
  2. Step 2: Convert to fraction form
    279,340.12/385,489.38 = 152,012.92/x
  3. Step 3: Cross multiply
    279,340.12x = 385,489.38 × 152,012.92
  4. Step 4: Simplify right side
    279,340.12x = 58,599,366,282.79
  5. Step 5: Solve for x
    x = 58,599,366,282.79/279,340.12
  6. Step 6: Final answer
    x = 209,777.84

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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.