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Finding the Fourth Proportional to 373,833.88, 515,880.84 and 343,740.76

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Solution

The fourth proportional to 373,833.88, 515,880.84 and 343,740.76 is: 474,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,833.88 : 515,880.84 = 343,740.76 : x
  2. Step 2: Convert to fraction form
    373,833.88/515,880.84 = 343,740.76/x
  3. Step 3: Cross multiply
    373,833.88x = 515,880.84 × 343,740.76
  4. Step 4: Simplify right side
    373,833.88x = 177,329,272,011.04
  5. Step 5: Solve for x
    x = 177,329,272,011.04/373,833.88
  6. Step 6: Final answer
    x = 474,353.13

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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.