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Finding the Fourth Proportional to 347,931.27, 480,416.54 and 267,230.97

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Solution

The fourth proportional to 347,931.27, 480,416.54 and 267,230.97 is: 368,987.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,931.27 : 480,416.54 = 267,230.97 : x
  2. Step 2: Convert to fraction form
    347,931.27/480,416.54 = 267,230.97/x
  3. Step 3: Cross multiply
    347,931.27x = 480,416.54 × 267,230.97
  4. Step 4: Simplify right side
    347,931.27x = 128,382,176,652.09
  5. Step 5: Solve for x
    x = 128,382,176,652.09/347,931.27
  6. Step 6: Final answer
    x = 368,987.18

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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.