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Finding the Fourth Proportional to 373,267.80, 515,117.30 and 209,927.44

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Solution

The fourth proportional to 373,267.80, 515,117.30 and 209,927.44 is: 289,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,267.80 : 515,117.30 = 209,927.44 : x
  2. Step 2: Convert to fraction form
    373,267.80/515,117.30 = 209,927.44/x
  3. Step 3: Cross multiply
    373,267.80x = 515,117.30 × 209,927.44
  4. Step 4: Simplify right side
    373,267.80x = 108,137,256,088.71
  5. Step 5: Solve for x
    x = 108,137,256,088.71/373,267.80
  6. Step 6: Final answer
    x = 289,704.22

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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.