Home / 316,454.40-436,690.17-173,186.73

Finding the Fourth Proportional to 316,454.40, 436,690.17 and 173,186.73

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Solution

The fourth proportional to 316,454.40, 436,690.17 and 173,186.73 is: 238,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,454.40 : 436,690.17 = 173,186.73 : x
  2. Step 2: Convert to fraction form
    316,454.40/436,690.17 = 173,186.73/x
  3. Step 3: Cross multiply
    316,454.40x = 436,690.17 × 173,186.73
  4. Step 4: Simplify right side
    316,454.40x = 75,628,942,565.44
  5. Step 5: Solve for x
    x = 75,628,942,565.44/316,454.40
  6. Step 6: Final answer
    x = 238,988.44

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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.