Home / 320,218.17-480,309.93-162,442.53

Finding the Fourth Proportional to 320,218.17, 480,309.93 and 162,442.53

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Solution

The fourth proportional to 320,218.17, 480,309.93 and 162,442.53 is: 243,655.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,218.17 : 480,309.93 = 162,442.53 : x
  2. Step 2: Convert to fraction form
    320,218.17/480,309.93 = 162,442.53/x
  3. Step 3: Cross multiply
    320,218.17x = 480,309.93 × 162,442.53
  4. Step 4: Simplify right side
    320,218.17x = 78,022,760,213.32
  5. Step 5: Solve for x
    x = 78,022,760,213.32/320,218.17
  6. Step 6: Final answer
    x = 243,655.01

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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.