Home / 320,279.06-480,438.41-107,066.16

Finding the Fourth Proportional to 320,279.06, 480,438.41 and 107,066.16

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Solution

The fourth proportional to 320,279.06, 480,438.41 and 107,066.16 is: 160,605.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,279.06 : 480,438.41 = 107,066.16 : x
  2. Step 2: Convert to fraction form
    320,279.06/480,438.41 = 107,066.16/x
  3. Step 3: Cross multiply
    320,279.06x = 480,438.41 × 107,066.16
  4. Step 4: Simplify right side
    320,279.06x = 51,438,695,139.87
  5. Step 5: Solve for x
    x = 51,438,695,139.87/320,279.06
  6. Step 6: Final answer
    x = 160,605.86

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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.