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Finding the Fourth Proportional to 345,050.60, 517,268.08 and 134,639.60

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Solution

The fourth proportional to 345,050.60, 517,268.08 and 134,639.60 is: 201,839.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,050.60 : 517,268.08 = 134,639.60 : x
  2. Step 2: Convert to fraction form
    345,050.60/517,268.08 = 134,639.60/x
  3. Step 3: Cross multiply
    345,050.60x = 517,268.08 × 134,639.60
  4. Step 4: Simplify right side
    345,050.60x = 69,644,767,383.97
  5. Step 5: Solve for x
    x = 69,644,767,383.97/345,050.60
  6. Step 6: Final answer
    x = 201,839.29

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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.