Home / 345,750.57-518,330.04-132,671.39

Finding the Fourth Proportional to 345,750.57, 518,330.04 and 132,671.39

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Solution

The fourth proportional to 345,750.57, 518,330.04 and 132,671.39 is: 198,893.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,750.57 : 518,330.04 = 132,671.39 : x
  2. Step 2: Convert to fraction form
    345,750.57/518,330.04 = 132,671.39/x
  3. Step 3: Cross multiply
    345,750.57x = 518,330.04 × 132,671.39
  4. Step 4: Simplify right side
    345,750.57x = 68,767,566,885.56
  5. Step 5: Solve for x
    x = 68,767,566,885.56/345,750.57
  6. Step 6: Final answer
    x = 198,893.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.