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Finding the Fourth Proportional to 202,646.40, 303,940.80 and 62,419.20

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Solution

The fourth proportional to 202,646.40, 303,940.80 and 62,419.20 is: 93,619.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,646.40 : 303,940.80 = 62,419.20 : x
  2. Step 2: Convert to fraction form
    202,646.40/303,940.80 = 62,419.20/x
  3. Step 3: Cross multiply
    202,646.40x = 303,940.80 × 62,419.20
  4. Step 4: Simplify right side
    202,646.40x = 18,971,741,583.36
  5. Step 5: Solve for x
    x = 18,971,741,583.36/202,646.40
  6. Step 6: Final answer
    x = 93,619.93

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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.