Home / 229,327.28-316,621.53-148,983.78

Finding the Fourth Proportional to 229,327.28, 316,621.53 and 148,983.78

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Solution

The fourth proportional to 229,327.28, 316,621.53 and 148,983.78 is: 205,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,327.28 : 316,621.53 = 148,983.78 : x
  2. Step 2: Convert to fraction form
    229,327.28/316,621.53 = 148,983.78/x
  3. Step 3: Cross multiply
    229,327.28x = 316,621.53 × 148,983.78
  4. Step 4: Simplify right side
    229,327.28x = 47,171,472,368.78
  5. Step 5: Solve for x
    x = 47,171,472,368.78/229,327.28
  6. Step 6: Final answer
    x = 205,694.99

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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.