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Finding the Fourth Proportional to 341,758.60, 512,637.90 and 89,038.60

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Solution

The fourth proportional to 341,758.60, 512,637.90 and 89,038.60 is: 133,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,758.60 : 512,637.90 = 89,038.60 : x
  2. Step 2: Convert to fraction form
    341,758.60/512,637.90 = 89,038.60/x
  3. Step 3: Cross multiply
    341,758.60x = 512,637.90 × 89,038.60
  4. Step 4: Simplify right side
    341,758.60x = 45,644,560,922.94
  5. Step 5: Solve for x
    x = 45,644,560,922.94/341,758.60
  6. Step 6: Final answer
    x = 133,557.90

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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.