Home / 316,728.46-474,431.64-189,966.70

Finding the Fourth Proportional to 316,728.46, 474,431.64 and 189,966.70

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Solution

The fourth proportional to 316,728.46, 474,431.64 and 189,966.70 is: 284,553.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,728.46 : 474,431.64 = 189,966.70 : x
  2. Step 2: Convert to fraction form
    316,728.46/474,431.64 = 189,966.70/x
  3. Step 3: Cross multiply
    316,728.46x = 474,431.64 × 189,966.70
  4. Step 4: Simplify right side
    316,728.46x = 90,126,213,026.39
  5. Step 5: Solve for x
    x = 90,126,213,026.39/316,728.46
  6. Step 6: Final answer
    x = 284,553.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.