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Finding the Fourth Proportional to 222,018.70, 333,031.20 and 72,259.78

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Solution

The fourth proportional to 222,018.70, 333,031.20 and 72,259.78 is: 108,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,018.70 : 333,031.20 = 72,259.78 : x
  2. Step 2: Convert to fraction form
    222,018.70/333,031.20 = 72,259.78/x
  3. Step 3: Cross multiply
    222,018.70x = 333,031.20 × 72,259.78
  4. Step 4: Simplify right side
    222,018.70x = 24,064,761,245.14
  5. Step 5: Solve for x
    x = 24,064,761,245.14/222,018.70
  6. Step 6: Final answer
    x = 108,390.70

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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.