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Finding the Fourth Proportional to 342,433.82, 472,748.72 and 206,502.21

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Solution

The fourth proportional to 342,433.82, 472,748.72 and 206,502.21 is: 285,087.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,433.82 : 472,748.72 = 206,502.21 : x
  2. Step 2: Convert to fraction form
    342,433.82/472,748.72 = 206,502.21/x
  3. Step 3: Cross multiply
    342,433.82x = 472,748.72 × 206,502.21
  4. Step 4: Simplify right side
    342,433.82x = 97,623,654,422.16
  5. Step 5: Solve for x
    x = 97,623,654,422.16/342,433.82
  6. Step 6: Final answer
    x = 285,087.65

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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.