Home / 400,738.62-553,015.36-216,976.29

Finding the Fourth Proportional to 400,738.62, 553,015.36 and 216,976.29

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Solution

The fourth proportional to 400,738.62, 553,015.36 and 216,976.29 is: 299,425.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,738.62 : 553,015.36 = 216,976.29 : x
  2. Step 2: Convert to fraction form
    400,738.62/553,015.36 = 216,976.29/x
  3. Step 3: Cross multiply
    400,738.62x = 553,015.36 × 216,976.29
  4. Step 4: Simplify right side
    400,738.62x = 119,991,220,040.93
  5. Step 5: Solve for x
    x = 119,991,220,040.93/400,738.62
  6. Step 6: Final answer
    x = 299,425.15

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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.