Home / 269,830.24-372,019.60-221,253.20

Finding the Fourth Proportional to 269,830.24, 372,019.60 and 221,253.20

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Solution

The fourth proportional to 269,830.24, 372,019.60 and 221,253.20 is: 305,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,830.24 : 372,019.60 = 221,253.20 : x
  2. Step 2: Convert to fraction form
    269,830.24/372,019.60 = 221,253.20/x
  3. Step 3: Cross multiply
    269,830.24x = 372,019.60 × 221,253.20
  4. Step 4: Simplify right side
    269,830.24x = 82,310,526,962.72
  5. Step 5: Solve for x
    x = 82,310,526,962.72/269,830.24
  6. Step 6: Final answer
    x = 305,045.60

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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.