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Finding the Fourth Proportional to 373,976.80, 560,965.20 and 121,256.80

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Solution

The fourth proportional to 373,976.80, 560,965.20 and 121,256.80 is: 181,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,976.80 : 560,965.20 = 121,256.80 : x
  2. Step 2: Convert to fraction form
    373,976.80/560,965.20 = 121,256.80/x
  3. Step 3: Cross multiply
    373,976.80x = 560,965.20 × 121,256.80
  4. Step 4: Simplify right side
    373,976.80x = 68,020,845,063.36
  5. Step 5: Solve for x
    x = 68,020,845,063.36/373,976.80
  6. Step 6: Final answer
    x = 181,885.20

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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.