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Finding the Fourth Proportional to 488,643.20, 732,619.20 and 222,531.20

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Solution

The fourth proportional to 488,643.20, 732,619.20 and 222,531.20 is: 333,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,643.20 : 732,619.20 = 222,531.20 : x
  2. Step 2: Convert to fraction form
    488,643.20/732,619.20 = 222,531.20/x
  3. Step 3: Cross multiply
    488,643.20x = 732,619.20 × 222,531.20
  4. Step 4: Simplify right side
    488,643.20x = 163,030,629,719.04
  5. Step 5: Solve for x
    x = 163,030,629,719.04/488,643.20
  6. Step 6: Final answer
    x = 333,639.41

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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.