Home / 320,056.52-480,213.87-142,442.04

Finding the Fourth Proportional to 320,056.52, 480,213.87 and 142,442.04

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Solution

The fourth proportional to 320,056.52, 480,213.87 and 142,442.04 is: 213,720.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,056.52 : 480,213.87 = 142,442.04 : x
  2. Step 2: Convert to fraction form
    320,056.52/480,213.87 = 142,442.04/x
  3. Step 3: Cross multiply
    320,056.52x = 480,213.87 × 142,442.04
  4. Step 4: Simplify right side
    320,056.52x = 68,402,644,545.74
  5. Step 5: Solve for x
    x = 68,402,644,545.74/320,056.52
  6. Step 6: Final answer
    x = 213,720.52

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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.