Home / 400,956.75-553,320.32-222,108.75

Finding the Fourth Proportional to 400,956.75, 553,320.32 and 222,108.75

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Solution

The fourth proportional to 400,956.75, 553,320.32 and 222,108.75 is: 306,510.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,956.75 : 553,320.32 = 222,108.75 : x
  2. Step 2: Convert to fraction form
    400,956.75/553,320.32 = 222,108.75/x
  3. Step 3: Cross multiply
    400,956.75x = 553,320.32 × 222,108.75
  4. Step 4: Simplify right side
    400,956.75x = 122,897,283,514.26
  5. Step 5: Solve for x
    x = 122,897,283,514.26/400,956.75
  6. Step 6: Final answer
    x = 306,510.08

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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.