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Finding the Fourth Proportional to 373,638.88, 515,473.50 and 230,150.08

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Solution

The fourth proportional to 373,638.88, 515,473.50 and 230,150.08 is: 317,515.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,638.88 : 515,473.50 = 230,150.08 : x
  2. Step 2: Convert to fraction form
    373,638.88/515,473.50 = 230,150.08/x
  3. Step 3: Cross multiply
    373,638.88x = 515,473.50 × 230,150.08
  4. Step 4: Simplify right side
    373,638.88x = 118,636,267,262.88
  5. Step 5: Solve for x
    x = 118,636,267,262.88/373,638.88
  6. Step 6: Final answer
    x = 317,515.85

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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.