Home / 320,162.13-480,225.83-162,386.46

Finding the Fourth Proportional to 320,162.13, 480,225.83 and 162,386.46

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Solution

The fourth proportional to 320,162.13, 480,225.83 and 162,386.46 is: 243,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,162.13 : 480,225.83 = 162,386.46 : x
  2. Step 2: Convert to fraction form
    320,162.13/480,225.83 = 162,386.46/x
  3. Step 3: Cross multiply
    320,162.13x = 480,225.83 × 162,386.46
  4. Step 4: Simplify right side
    320,162.13x = 77,982,171,722.33
  5. Step 5: Solve for x
    x = 77,982,171,722.33/320,162.13
  6. Step 6: Final answer
    x = 243,570.88

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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.