Home / 220,658.32-304,418.28-153,629.20

Finding the Fourth Proportional to 220,658.32, 304,418.28 and 153,629.20

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Solution

The fourth proportional to 220,658.32, 304,418.28 and 153,629.20 is: 211,945.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,658.32 : 304,418.28 = 153,629.20 : x
  2. Step 2: Convert to fraction form
    220,658.32/304,418.28 = 153,629.20/x
  3. Step 3: Cross multiply
    220,658.32x = 304,418.28 × 153,629.20
  4. Step 4: Simplify right side
    220,658.32x = 46,767,536,821.78
  5. Step 5: Solve for x
    x = 46,767,536,821.78/220,658.32
  6. Step 6: Final answer
    x = 211,945.49

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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.