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Finding the Fourth Proportional to 320,278.37, 480,437.37 and 107,065.47

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Solution

The fourth proportional to 320,278.37, 480,437.37 and 107,065.47 is: 160,604.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,278.37 : 480,437.37 = 107,065.47 : x
  2. Step 2: Convert to fraction form
    320,278.37/480,437.37 = 107,065.47/x
  3. Step 3: Cross multiply
    320,278.37x = 480,437.37 × 107,065.47
  4. Step 4: Simplify right side
    320,278.37x = 51,438,252,824.61
  5. Step 5: Solve for x
    x = 51,438,252,824.61/320,278.37
  6. Step 6: Final answer
    x = 160,604.83

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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.