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Finding the Fourth Proportional to 275,206.60, 412,712.70 and 97,719.40

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Solution

The fourth proportional to 275,206.60, 412,712.70 and 97,719.40 is: 146,544.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,206.60 : 412,712.70 = 97,719.40 : x
  2. Step 2: Convert to fraction form
    275,206.60/412,712.70 = 97,719.40/x
  3. Step 3: Cross multiply
    275,206.60x = 412,712.70 × 97,719.40
  4. Step 4: Simplify right side
    275,206.60x = 40,330,037,416.38
  5. Step 5: Solve for x
    x = 40,330,037,416.38/275,206.60
  6. Step 6: Final answer
    x = 146,544.59

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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.