Home / 279,440.26-385,629.36-152,115.82

Finding the Fourth Proportional to 279,440.26, 385,629.36 and 152,115.82

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Solution

The fourth proportional to 279,440.26, 385,629.36 and 152,115.82 is: 209,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,440.26 : 385,629.36 = 152,115.82 : x
  2. Step 2: Convert to fraction form
    279,440.26/385,629.36 = 152,115.82/x
  3. Step 3: Cross multiply
    279,440.26x = 385,629.36 × 152,115.82
  4. Step 4: Simplify right side
    279,440.26x = 58,660,326,312.48
  5. Step 5: Solve for x
    x = 58,660,326,312.48/279,440.26
  6. Step 6: Final answer
    x = 209,920.81

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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.