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Finding the Fourth Proportional to 310,410.70, 465,616.05 and 123,422.20

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Solution

The fourth proportional to 310,410.70, 465,616.05 and 123,422.20 is: 185,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,410.70 : 465,616.05 = 123,422.20 : x
  2. Step 2: Convert to fraction form
    310,410.70/465,616.05 = 123,422.20/x
  3. Step 3: Cross multiply
    310,410.70x = 465,616.05 × 123,422.20
  4. Step 4: Simplify right side
    310,410.70x = 57,467,357,246.31
  5. Step 5: Solve for x
    x = 57,467,357,246.31/310,410.70
  6. Step 6: Final answer
    x = 185,133.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.