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Finding the Fourth Proportional to 252,476.70, 348,418.71 and 137,754.78

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Solution

The fourth proportional to 252,476.70, 348,418.71 and 137,754.78 is: 190,102.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,476.70 : 348,418.71 = 137,754.78 : x
  2. Step 2: Convert to fraction form
    252,476.70/348,418.71 = 137,754.78/x
  3. Step 3: Cross multiply
    252,476.70x = 348,418.71 × 137,754.78
  4. Step 4: Simplify right side
    252,476.70x = 47,996,342,743.93
  5. Step 5: Solve for x
    x = 47,996,342,743.93/252,476.70
  6. Step 6: Final answer
    x = 190,102.07

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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.