Home / 279,436.38-385,622.24-152,112.93

Finding the Fourth Proportional to 279,436.38, 385,622.24 and 152,112.93

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Solution

The fourth proportional to 279,436.38, 385,622.24 and 152,112.93 is: 209,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,436.38 : 385,622.24 = 152,112.93 : x
  2. Step 2: Convert to fraction form
    279,436.38/385,622.24 = 152,112.93/x
  3. Step 3: Cross multiply
    279,436.38x = 385,622.24 × 152,112.93
  4. Step 4: Simplify right side
    279,436.38x = 58,658,128,799.56
  5. Step 5: Solve for x
    x = 58,658,128,799.56/279,436.38
  6. Step 6: Final answer
    x = 209,915.86

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1.5x scale

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.