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Finding the Fourth Proportional to 245,192.30, 367,788.45 and 87,363.80

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Solution

The fourth proportional to 245,192.30, 367,788.45 and 87,363.80 is: 131,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,192.30 : 367,788.45 = 87,363.80 : x
  2. Step 2: Convert to fraction form
    245,192.30/367,788.45 = 87,363.80/x
  3. Step 3: Cross multiply
    245,192.30x = 367,788.45 × 87,363.80
  4. Step 4: Simplify right side
    245,192.30x = 32,131,396,588.11
  5. Step 5: Solve for x
    x = 32,131,396,588.11/245,192.30
  6. Step 6: Final answer
    x = 131,045.70

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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.