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Finding the Fourth Proportional to 398,833.22, 598,362.86 and 162,345.62

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Solution

The fourth proportional to 398,833.22, 598,362.86 and 162,345.62 is: 243,564.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,833.22 : 598,362.86 = 162,345.62 : x
  2. Step 2: Convert to fraction form
    398,833.22/598,362.86 = 162,345.62/x
  3. Step 3: Cross multiply
    398,833.22x = 598,362.86 × 162,345.62
  4. Step 4: Simplify right side
    398,833.22x = 97,141,589,491.67
  5. Step 5: Solve for x
    x = 97,141,589,491.67/398,833.22
  6. Step 6: Final answer
    x = 243,564.44

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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.