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Finding the Fourth Proportional to 252,685.97, 348,737.23 and 143,816.78

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Solution

The fourth proportional to 252,685.97, 348,737.23 and 143,816.78 is: 198,484.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,685.97 : 348,737.23 = 143,816.78 : x
  2. Step 2: Convert to fraction form
    252,685.97/348,737.23 = 143,816.78/x
  3. Step 3: Cross multiply
    252,685.97x = 348,737.23 × 143,816.78
  4. Step 4: Simplify right side
    252,685.97x = 50,154,265,727.36
  5. Step 5: Solve for x
    x = 50,154,265,727.36/252,685.97
  6. Step 6: Final answer
    x = 198,484.57

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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.