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Finding the Fourth Proportional to 245,176.60, 367,764.90 and 87,410.20

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Solution

The fourth proportional to 245,176.60, 367,764.90 and 87,410.20 is: 131,115.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,176.60 : 367,764.90 = 87,410.20 : x
  2. Step 2: Convert to fraction form
    245,176.60/367,764.90 = 87,410.20/x
  3. Step 3: Cross multiply
    245,176.60x = 367,764.90 × 87,410.20
  4. Step 4: Simplify right side
    245,176.60x = 32,146,403,461.98
  5. Step 5: Solve for x
    x = 32,146,403,461.98/245,176.60
  6. Step 6: Final answer
    x = 131,115.30

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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.