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Finding the Fourth Proportional to 342,760.02, 472,952.43 and 215,344.86

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Solution

The fourth proportional to 342,760.02, 472,952.43 and 215,344.86 is: 297,140.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,760.02 : 472,952.43 = 215,344.86 : x
  2. Step 2: Convert to fraction form
    342,760.02/472,952.43 = 215,344.86/x
  3. Step 3: Cross multiply
    342,760.02x = 472,952.43 × 215,344.86
  4. Step 4: Simplify right side
    342,760.02x = 101,847,874,825.01
  5. Step 5: Solve for x
    x = 101,847,874,825.01/342,760.02
  6. Step 6: Final answer
    x = 297,140.47

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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.