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Finding the Fourth Proportional to 373,651.16, 515,771.58 and 220,689.92

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Solution

The fourth proportional to 373,651.16, 515,771.58 and 220,689.92 is: 304,630.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,651.16 : 515,771.58 = 220,689.92 : x
  2. Step 2: Convert to fraction form
    373,651.16/515,771.58 = 220,689.92/x
  3. Step 3: Cross multiply
    373,651.16x = 515,771.58 × 220,689.92
  4. Step 4: Simplify right side
    373,651.16x = 113,825,588,728.47
  5. Step 5: Solve for x
    x = 113,825,588,728.47/373,651.16
  6. Step 6: Final answer
    x = 304,630.63

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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.