Home / 256,834.50-354,432.18-142,121.46

Finding the Fourth Proportional to 256,834.50, 354,432.18 and 142,121.46

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Solution

The fourth proportional to 256,834.50, 354,432.18 and 142,121.46 is: 196,127.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,834.50 : 354,432.18 = 142,121.46 : x
  2. Step 2: Convert to fraction form
    256,834.50/354,432.18 = 142,121.46/x
  3. Step 3: Cross multiply
    256,834.50x = 354,432.18 × 142,121.46
  4. Step 4: Simplify right side
    256,834.50x = 50,372,418,892.58
  5. Step 5: Solve for x
    x = 50,372,418,892.58/256,834.50
  6. Step 6: Final answer
    x = 196,127.93

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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.