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Finding the Fourth Proportional to 345,252.62, 517,671.56 and 134,989.58

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Solution

The fourth proportional to 345,252.62, 517,671.56 and 134,989.58 is: 202,403.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,252.62 : 517,671.56 = 134,989.58 : x
  2. Step 2: Convert to fraction form
    345,252.62/517,671.56 = 134,989.58/x
  3. Step 3: Cross multiply
    345,252.62x = 517,671.56 × 134,989.58
  4. Step 4: Simplify right side
    345,252.62x = 69,880,266,462.34
  5. Step 5: Solve for x
    x = 69,880,266,462.34/345,252.62
  6. Step 6: Final answer
    x = 202,403.29

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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.