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Finding the Fourth Proportional to 316,680.85, 437,003.34 and 173,437.82

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Solution

The fourth proportional to 316,680.85, 437,003.34 and 173,437.82 is: 239,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,680.85 : 437,003.34 = 173,437.82 : x
  2. Step 2: Convert to fraction form
    316,680.85/437,003.34 = 173,437.82/x
  3. Step 3: Cross multiply
    316,680.85x = 437,003.34 × 173,437.82
  4. Step 4: Simplify right side
    316,680.85x = 75,792,905,425.67
  5. Step 5: Solve for x
    x = 75,792,905,425.67/316,680.85
  6. Step 6: Final answer
    x = 239,335.30

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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.