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Finding the Fourth Proportional to 245,135.60, 367,441.80 and 139,727.60

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Solution

The fourth proportional to 245,135.60, 367,441.80 and 139,727.60 is: 209,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,135.60 : 367,441.80 = 139,727.60 : x
  2. Step 2: Convert to fraction form
    245,135.60/367,441.80 = 139,727.60/x
  3. Step 3: Cross multiply
    245,135.60x = 367,441.80 × 139,727.60
  4. Step 4: Simplify right side
    245,135.60x = 51,341,760,853.68
  5. Step 5: Solve for x
    x = 51,341,760,853.68/245,135.60
  6. Step 6: Final answer
    x = 209,442.29

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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.