Home / 215,637.39-297,766.73-135,203.18

Finding the Fourth Proportional to 215,637.39, 297,766.73 and 135,203.18

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Solution

The fourth proportional to 215,637.39, 297,766.73 and 135,203.18 is: 186,697.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,637.39 : 297,766.73 = 135,203.18 : x
  2. Step 2: Convert to fraction form
    215,637.39/297,766.73 = 135,203.18/x
  3. Step 3: Cross multiply
    215,637.39x = 297,766.73 × 135,203.18
  4. Step 4: Simplify right side
    215,637.39x = 40,259,007,643.38
  5. Step 5: Solve for x
    x = 40,259,007,643.38/215,637.39
  6. Step 6: Final answer
    x = 186,697.71

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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.