Home / 279,540.30-385,766.08-152,216.40

Finding the Fourth Proportional to 279,540.30, 385,766.08 and 152,216.40

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Solution

The fourth proportional to 279,540.30, 385,766.08 and 152,216.40 is: 210,058.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,540.30 : 385,766.08 = 152,216.40 : x
  2. Step 2: Convert to fraction form
    279,540.30/385,766.08 = 152,216.40/x
  3. Step 3: Cross multiply
    279,540.30x = 385,766.08 × 152,216.40
  4. Step 4: Simplify right side
    279,540.30x = 58,719,923,939.71
  5. Step 5: Solve for x
    x = 58,719,923,939.71/279,540.30
  6. Step 6: Final answer
    x = 210,058.89

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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.