Home / 252,111.40-378,167.10-133,721.80

Finding the Fourth Proportional to 252,111.40, 378,167.10 and 133,721.80

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Solution

The fourth proportional to 252,111.40, 378,167.10 and 133,721.80 is: 200,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,111.40 : 378,167.10 = 133,721.80 : x
  2. Step 2: Convert to fraction form
    252,111.40/378,167.10 = 133,721.80/x
  3. Step 3: Cross multiply
    252,111.40x = 378,167.10 × 133,721.80
  4. Step 4: Simplify right side
    252,111.40x = 50,569,185,312.78
  5. Step 5: Solve for x
    x = 50,569,185,312.78/252,111.40
  6. Step 6: Final answer
    x = 200,582.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.