Home / 279,439.88-385,627.08-152,116.42

Finding the Fourth Proportional to 279,439.88, 385,627.08 and 152,116.42

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Solution

The fourth proportional to 279,439.88, 385,627.08 and 152,116.42 is: 209,920.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,439.88 : 385,627.08 = 152,116.42 : x
  2. Step 2: Convert to fraction form
    279,439.88/385,627.08 = 152,116.42/x
  3. Step 3: Cross multiply
    279,439.88x = 385,627.08 × 152,116.42
  4. Step 4: Simplify right side
    279,439.88x = 58,660,210,864.65
  5. Step 5: Solve for x
    x = 58,660,210,864.65/279,439.88
  6. Step 6: Final answer
    x = 209,920.68

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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.