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Finding the Fourth Proportional to 245,145.60, 367,761.60 and 87,465.60

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Solution

The fourth proportional to 245,145.60, 367,761.60 and 87,465.60 is: 131,213.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,145.60 : 367,761.60 = 87,465.60 : x
  2. Step 2: Convert to fraction form
    245,145.60/367,761.60 = 87,465.60/x
  3. Step 3: Cross multiply
    245,145.60x = 367,761.60 × 87,465.60
  4. Step 4: Simplify right side
    245,145.60x = 32,166,489,000.96
  5. Step 5: Solve for x
    x = 32,166,489,000.96/245,145.60
  6. Step 6: Final answer
    x = 131,213.81

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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.