Home / 320,210.92-480,299.07-162,435.27

Finding the Fourth Proportional to 320,210.92, 480,299.07 and 162,435.27

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Solution

The fourth proportional to 320,210.92, 480,299.07 and 162,435.27 is: 243,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,210.92 : 480,299.07 = 162,435.27 : x
  2. Step 2: Convert to fraction form
    320,210.92/480,299.07 = 162,435.27/x
  3. Step 3: Cross multiply
    320,210.92x = 480,299.07 × 162,435.27
  4. Step 4: Simplify right side
    320,210.92x = 78,017,509,116.20
  5. Step 5: Solve for x
    x = 78,017,509,116.20/320,210.92
  6. Step 6: Final answer
    x = 243,644.12

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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.