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Finding the Fourth Proportional to 222,437.60, 333,656.40 and 143,640.80

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Solution

The fourth proportional to 222,437.60, 333,656.40 and 143,640.80 is: 215,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,437.60 : 333,656.40 = 143,640.80 : x
  2. Step 2: Convert to fraction form
    222,437.60/333,656.40 = 143,640.80/x
  3. Step 3: Cross multiply
    222,437.60x = 333,656.40 × 143,640.80
  4. Step 4: Simplify right side
    222,437.60x = 47,926,672,221.12
  5. Step 5: Solve for x
    x = 47,926,672,221.12/222,437.60
  6. Step 6: Final answer
    x = 215,461.20

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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.