Home / 279,607.04-385,851.30-152,279.90

Finding the Fourth Proportional to 279,607.04, 385,851.30 and 152,279.90

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Solution

The fourth proportional to 279,607.04, 385,851.30 and 152,279.90 is: 210,142.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,607.04 : 385,851.30 = 152,279.90 : x
  2. Step 2: Convert to fraction form
    279,607.04/385,851.30 = 152,279.90/x
  3. Step 3: Cross multiply
    279,607.04x = 385,851.30 × 152,279.90
  4. Step 4: Simplify right side
    279,607.04x = 58,757,397,378.87
  5. Step 5: Solve for x
    x = 58,757,397,378.87/279,607.04
  6. Step 6: Final answer
    x = 210,142.77

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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.