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Finding the Fourth Proportional to 337,018.60, 505,386.78 and 137,203.12

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Solution

The fourth proportional to 337,018.60, 505,386.78 and 137,203.12 is: 205,747.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,018.60 : 505,386.78 = 137,203.12 : x
  2. Step 2: Convert to fraction form
    337,018.60/505,386.78 = 137,203.12/x
  3. Step 3: Cross multiply
    337,018.60x = 505,386.78 × 137,203.12
  4. Step 4: Simplify right side
    337,018.60x = 69,340,643,022.75
  5. Step 5: Solve for x
    x = 69,340,643,022.75/337,018.60
  6. Step 6: Final answer
    x = 205,747.23

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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.