Home / 320,162.94-480,253.05-83,500.38

Finding the Fourth Proportional to 320,162.94, 480,253.05 and 83,500.38

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Solution

The fourth proportional to 320,162.94, 480,253.05 and 83,500.38 is: 125,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,162.94 : 480,253.05 = 83,500.38 : x
  2. Step 2: Convert to fraction form
    320,162.94/480,253.05 = 83,500.38/x
  3. Step 3: Cross multiply
    320,162.94x = 480,253.05 × 83,500.38
  4. Step 4: Simplify right side
    320,162.94x = 40,101,312,171.16
  5. Step 5: Solve for x
    x = 40,101,312,171.16/320,162.94
  6. Step 6: Final answer
    x = 125,252.82

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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.