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Finding the Fourth Proportional to 519,732.25, 717,230.51 and 281,268.25

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Solution

The fourth proportional to 519,732.25, 717,230.51 and 281,268.25 is: 388,150.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,732.25 : 717,230.51 = 281,268.25 : x
  2. Step 2: Convert to fraction form
    519,732.25/717,230.51 = 281,268.25/x
  3. Step 3: Cross multiply
    519,732.25x = 717,230.51 × 281,268.25
  4. Step 4: Simplify right side
    519,732.25x = 201,734,170,394.31
  5. Step 5: Solve for x
    x = 201,734,170,394.31/519,732.25
  6. Step 6: Final answer
    x = 388,150.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.