Home / 320,155.24-480,215.54-162,379.59

Finding the Fourth Proportional to 320,155.24, 480,215.54 and 162,379.59

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Solution

The fourth proportional to 320,155.24, 480,215.54 and 162,379.59 is: 243,560.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,155.24 : 480,215.54 = 162,379.59 : x
  2. Step 2: Convert to fraction form
    320,155.24/480,215.54 = 162,379.59/x
  3. Step 3: Cross multiply
    320,155.24x = 480,215.54 × 162,379.59
  4. Step 4: Simplify right side
    320,155.24x = 77,977,199,283.85
  5. Step 5: Solve for x
    x = 77,977,199,283.85/320,155.24
  6. Step 6: Final answer
    x = 243,560.59

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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.