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Finding the Fourth Proportional to 319,375.80, 479,063.70 and 150,840.72

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Solution

The fourth proportional to 319,375.80, 479,063.70 and 150,840.72 is: 226,261.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,375.80 : 479,063.70 = 150,840.72 : x
  2. Step 2: Convert to fraction form
    319,375.80/479,063.70 = 150,840.72/x
  3. Step 3: Cross multiply
    319,375.80x = 479,063.70 × 150,840.72
  4. Step 4: Simplify right side
    319,375.80x = 72,262,313,433.86
  5. Step 5: Solve for x
    x = 72,262,313,433.86/319,375.80
  6. Step 6: Final answer
    x = 226,261.08

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1.5x scale

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.