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Finding the Fourth Proportional to 347,976.81, 480,439.40 and 267,260.13

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Solution

The fourth proportional to 347,976.81, 480,439.40 and 267,260.13 is: 368,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,976.81 : 480,439.40 = 267,260.13 : x
  2. Step 2: Convert to fraction form
    347,976.81/480,439.40 = 267,260.13/x
  3. Step 3: Cross multiply
    347,976.81x = 480,439.40 × 267,260.13
  4. Step 4: Simplify right side
    347,976.81x = 128,402,295,164.82
  5. Step 5: Solve for x
    x = 128,402,295,164.82/347,976.81
  6. Step 6: Final answer
    x = 368,996.70

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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.