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Finding the Fourth Proportional to 337,415.60, 465,331.75 and 279,963.79

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Solution

The fourth proportional to 337,415.60, 465,331.75 and 279,963.79 is: 386,099.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,415.60 : 465,331.75 = 279,963.79 : x
  2. Step 2: Convert to fraction form
    337,415.60/465,331.75 = 279,963.79/x
  3. Step 3: Cross multiply
    337,415.60x = 465,331.75 × 279,963.79
  4. Step 4: Simplify right side
    337,415.60x = 130,276,041,485.28
  5. Step 5: Solve for x
    x = 130,276,041,485.28/337,415.60
  6. Step 6: Final answer
    x = 386,099.64

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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.