Home / 320,209.55-480,297-162,433.90

Finding the Fourth Proportional to 320,209.55, 480,297 and 162,433.90

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Solution

The fourth proportional to 320,209.55, 480,297 and 162,433.90 is: 243,642.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,209.55 : 480,297 = 162,433.90 : x
  2. Step 2: Convert to fraction form
    320,209.55/480,297 = 162,433.90/x
  3. Step 3: Cross multiply
    320,209.55x = 480,297 × 162,433.90
  4. Step 4: Simplify right side
    320,209.55x = 78,016,514,868.30
  5. Step 5: Solve for x
    x = 78,016,514,868.30/320,209.55
  6. Step 6: Final answer
    x = 243,642.07

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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.