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Finding the Fourth Proportional to 558,991.20, 838,411.20 and 222,279.60

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Solution

The fourth proportional to 558,991.20, 838,411.20 and 222,279.60 is: 333,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,991.20 : 838,411.20 = 222,279.60 : x
  2. Step 2: Convert to fraction form
    558,991.20/838,411.20 = 222,279.60/x
  3. Step 3: Cross multiply
    558,991.20x = 838,411.20 × 222,279.60
  4. Step 4: Simplify right side
    558,991.20x = 186,361,706,171.52
  5. Step 5: Solve for x
    x = 186,361,706,171.52/558,991.20
  6. Step 6: Final answer
    x = 333,389.34

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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.