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Finding the Fourth Proportional to 375,522.58, 518,217.77 and 203,436.59

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Solution

The fourth proportional to 375,522.58, 518,217.77 and 203,436.59 is: 280,740.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,522.58 : 518,217.77 = 203,436.59 : x
  2. Step 2: Convert to fraction form
    375,522.58/518,217.77 = 203,436.59/x
  3. Step 3: Cross multiply
    375,522.58x = 518,217.77 × 203,436.59
  4. Step 4: Simplify right side
    375,522.58x = 105,424,454,989.02
  5. Step 5: Solve for x
    x = 105,424,454,989.02/375,522.58
  6. Step 6: Final answer
    x = 280,740.66

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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.