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Finding the Fourth Proportional to 220,315.77, 304,042.88 and 124,820.42

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Solution

The fourth proportional to 220,315.77, 304,042.88 and 124,820.42 is: 172,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,315.77 : 304,042.88 = 124,820.42 : x
  2. Step 2: Convert to fraction form
    220,315.77/304,042.88 = 124,820.42/x
  3. Step 3: Cross multiply
    220,315.77x = 304,042.88 × 124,820.42
  4. Step 4: Simplify right side
    220,315.77x = 37,950,758,771.45
  5. Step 5: Solve for x
    x = 37,950,758,771.45/220,315.77
  6. Step 6: Final answer
    x = 172,256.21

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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.