Home / 279,630.11-385,889.58-152,305.80

Finding the Fourth Proportional to 279,630.11, 385,889.58 and 152,305.80

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Solution

The fourth proportional to 279,630.11, 385,889.58 and 152,305.80 is: 210,182.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,630.11 : 385,889.58 = 152,305.80 : x
  2. Step 2: Convert to fraction form
    279,630.11/385,889.58 = 152,305.80/x
  3. Step 3: Cross multiply
    279,630.11x = 385,889.58 × 152,305.80
  4. Step 4: Simplify right side
    279,630.11x = 58,773,221,193.56
  5. Step 5: Solve for x
    x = 58,773,221,193.56/279,630.11
  6. Step 6: Final answer
    x = 210,182.02

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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.