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Finding the Fourth Proportional to 222,425.60, 333,638.40 and 143,628.80

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Solution

The fourth proportional to 222,425.60, 333,638.40 and 143,628.80 is: 215,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,425.60 : 333,638.40 = 143,628.80 : x
  2. Step 2: Convert to fraction form
    222,425.60/333,638.40 = 143,628.80/x
  3. Step 3: Cross multiply
    222,425.60x = 333,638.40 × 143,628.80
  4. Step 4: Simplify right side
    222,425.60x = 47,920,083,025.92
  5. Step 5: Solve for x
    x = 47,920,083,025.92/222,425.60
  6. Step 6: Final answer
    x = 215,443.20

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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.