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Finding the Fourth Proportional to 222,185.39, 333,312.64 and 72,390.80

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Solution

The fourth proportional to 222,185.39, 333,312.64 and 72,390.80 is: 108,597.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,185.39 : 333,312.64 = 72,390.80 : x
  2. Step 2: Convert to fraction form
    222,185.39/333,312.64 = 72,390.80/x
  3. Step 3: Cross multiply
    222,185.39x = 333,312.64 × 72,390.80
  4. Step 4: Simplify right side
    222,185.39x = 24,128,769,312.02
  5. Step 5: Solve for x
    x = 24,128,769,312.02/222,185.39
  6. Step 6: Final answer
    x = 108,597.46

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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.