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Finding the Fourth Proportional to 222,426.80, 333,640.20 and 212,058.80

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Solution

The fourth proportional to 222,426.80, 333,640.20 and 212,058.80 is: 318,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,426.80 : 333,640.20 = 212,058.80 : x
  2. Step 2: Convert to fraction form
    222,426.80/333,640.20 = 212,058.80/x
  3. Step 3: Cross multiply
    222,426.80x = 333,640.20 × 212,058.80
  4. Step 4: Simplify right side
    222,426.80x = 70,751,340,443.76
  5. Step 5: Solve for x
    x = 70,751,340,443.76/222,426.80
  6. Step 6: Final answer
    x = 318,088.20

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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.