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Finding the Fourth Proportional to 222,476.80, 333,715.20 and 89,420.80

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Solution

The fourth proportional to 222,476.80, 333,715.20 and 89,420.80 is: 134,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,476.80 : 333,715.20 = 89,420.80 : x
  2. Step 2: Convert to fraction form
    222,476.80/333,715.20 = 89,420.80/x
  3. Step 3: Cross multiply
    222,476.80x = 333,715.20 × 89,420.80
  4. Step 4: Simplify right side
    222,476.80x = 29,841,080,156.16
  5. Step 5: Solve for x
    x = 29,841,080,156.16/222,476.80
  6. Step 6: Final answer
    x = 134,131.20

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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.