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Finding the Fourth Proportional to 245,049.80, 367,574.70 and 78,854.60

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Solution

The fourth proportional to 245,049.80, 367,574.70 and 78,854.60 is: 118,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,049.80 : 367,574.70 = 78,854.60 : x
  2. Step 2: Convert to fraction form
    245,049.80/367,574.70 = 78,854.60/x
  3. Step 3: Cross multiply
    245,049.80x = 367,574.70 × 78,854.60
  4. Step 4: Simplify right side
    245,049.80x = 28,984,955,938.62
  5. Step 5: Solve for x
    x = 28,984,955,938.62/245,049.80
  6. Step 6: Final answer
    x = 118,281.90

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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.