Home / 279,451.19-385,640.72-152,126.48

Finding the Fourth Proportional to 279,451.19, 385,640.72 and 152,126.48

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Solution

The fourth proportional to 279,451.19, 385,640.72 and 152,126.48 is: 209,933.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,451.19 : 385,640.72 = 152,126.48 : x
  2. Step 2: Convert to fraction form
    279,451.19/385,640.72 = 152,126.48/x
  3. Step 3: Cross multiply
    279,451.19x = 385,640.72 × 152,126.48
  4. Step 4: Simplify right side
    279,451.19x = 58,666,165,278.27
  5. Step 5: Solve for x
    x = 58,666,165,278.27/279,451.19
  6. Step 6: Final answer
    x = 209,933.50

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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.