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Finding the Fourth Proportional to 245,023.70, 367,535.55 and 78,811.70

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Solution

The fourth proportional to 245,023.70, 367,535.55 and 78,811.70 is: 118,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,023.70 : 367,535.55 = 78,811.70 : x
  2. Step 2: Convert to fraction form
    245,023.70/367,535.55 = 78,811.70/x
  3. Step 3: Cross multiply
    245,023.70x = 367,535.55 × 78,811.70
  4. Step 4: Simplify right side
    245,023.70x = 28,966,101,505.94
  5. Step 5: Solve for x
    x = 28,966,101,505.94/245,023.70
  6. Step 6: Final answer
    x = 118,217.55

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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.