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Finding the Fourth Proportional to 245,555.20, 368,138.40 and 134,747.20

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Solution

The fourth proportional to 245,555.20, 368,138.40 and 134,747.20 is: 202,014.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,555.20 : 368,138.40 = 134,747.20 : x
  2. Step 2: Convert to fraction form
    245,555.20/368,138.40 = 134,747.20/x
  3. Step 3: Cross multiply
    245,555.20x = 368,138.40 × 134,747.20
  4. Step 4: Simplify right side
    245,555.20x = 49,605,618,612.48
  5. Step 5: Solve for x
    x = 49,605,618,612.48/245,555.20
  6. Step 6: Final answer
    x = 202,014.12

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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.