Home / 290,327.04-400,648.32-162,999.68

Finding the Fourth Proportional to 290,327.04, 400,648.32 and 162,999.68

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Solution

The fourth proportional to 290,327.04, 400,648.32 and 162,999.68 is: 224,937.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,327.04 : 400,648.32 = 162,999.68 : x
  2. Step 2: Convert to fraction form
    290,327.04/400,648.32 = 162,999.68/x
  3. Step 3: Cross multiply
    290,327.04x = 400,648.32 × 162,999.68
  4. Step 4: Simplify right side
    290,327.04x = 65,305,547,952.54
  5. Step 5: Solve for x
    x = 65,305,547,952.54/290,327.04
  6. Step 6: Final answer
    x = 224,937.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.