Home / 226,381.28-312,220.78-140,280.46

Finding the Fourth Proportional to 226,381.28, 312,220.78 and 140,280.46

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Solution

The fourth proportional to 226,381.28, 312,220.78 and 140,280.46 is: 193,472.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,381.28 : 312,220.78 = 140,280.46 : x
  2. Step 2: Convert to fraction form
    226,381.28/312,220.78 = 140,280.46/x
  3. Step 3: Cross multiply
    226,381.28x = 312,220.78 × 140,280.46
  4. Step 4: Simplify right side
    226,381.28x = 43,798,474,639.96
  5. Step 5: Solve for x
    x = 43,798,474,639.96/226,381.28
  6. Step 6: Final answer
    x = 193,472.16

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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.