Home / 221,441.80-332,279.36-128,013.16

Finding the Fourth Proportional to 221,441.80, 332,279.36 and 128,013.16

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Solution

The fourth proportional to 221,441.80, 332,279.36 and 128,013.16 is: 192,087.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,441.80 : 332,279.36 = 128,013.16 : x
  2. Step 2: Convert to fraction form
    221,441.80/332,279.36 = 128,013.16/x
  3. Step 3: Cross multiply
    221,441.80x = 332,279.36 × 128,013.16
  4. Step 4: Simplify right side
    221,441.80x = 42,536,130,876.38
  5. Step 5: Solve for x
    x = 42,536,130,876.38/221,441.80
  6. Step 6: Final answer
    x = 192,087.18

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1.5x scale

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.