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Finding the Fourth Proportional to 245,110.75, 367,666.13 and 78,898.75

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Solution

The fourth proportional to 245,110.75, 367,666.13 and 78,898.75 is: 118,348.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,110.75 : 367,666.13 = 78,898.75 : x
  2. Step 2: Convert to fraction form
    245,110.75/367,666.13 = 78,898.75/x
  3. Step 3: Cross multiply
    245,110.75x = 367,666.13 × 78,898.75
  4. Step 4: Simplify right side
    245,110.75x = 29,008,398,074.34
  5. Step 5: Solve for x
    x = 29,008,398,074.34/245,110.75
  6. Step 6: Final answer
    x = 118,348.13

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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.