Home / 316,378.20-436,601.94-173,138.32

Finding the Fourth Proportional to 316,378.20, 436,601.94 and 173,138.32

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Solution

The fourth proportional to 316,378.20, 436,601.94 and 173,138.32 is: 238,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,378.20 : 436,601.94 = 173,138.32 : x
  2. Step 2: Convert to fraction form
    316,378.20/436,601.94 = 173,138.32/x
  3. Step 3: Cross multiply
    316,378.20x = 436,601.94 × 173,138.32
  4. Step 4: Simplify right side
    316,378.20x = 75,592,526,400.34
  5. Step 5: Solve for x
    x = 75,592,526,400.34/316,378.20
  6. Step 6: Final answer
    x = 238,930.89

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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.