Home / 316,623.17-436,945.10-173,380.74

Finding the Fourth Proportional to 316,623.17, 436,945.10 and 173,380.74

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Solution

The fourth proportional to 316,623.17, 436,945.10 and 173,380.74 is: 239,268.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,623.17 : 436,945.10 = 173,380.74 : x
  2. Step 2: Convert to fraction form
    316,623.17/436,945.10 = 173,380.74/x
  3. Step 3: Cross multiply
    316,623.17x = 436,945.10 × 173,380.74
  4. Step 4: Simplify right side
    316,623.17x = 75,757,863,910.47
  5. Step 5: Solve for x
    x = 75,757,863,910.47/316,623.17
  6. Step 6: Final answer
    x = 239,268.23

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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.