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Finding the Fourth Proportional to 202,653.86, 303,987 and 69,532.28

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Solution

The fourth proportional to 202,653.86, 303,987 and 69,532.28 is: 104,300.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,653.86 : 303,987 = 69,532.28 : x
  2. Step 2: Convert to fraction form
    202,653.86/303,987 = 69,532.28/x
  3. Step 3: Cross multiply
    202,653.86x = 303,987 × 69,532.28
  4. Step 4: Simplify right side
    202,653.86x = 21,136,909,200.36
  5. Step 5: Solve for x
    x = 21,136,909,200.36/202,653.86
  6. Step 6: Final answer
    x = 104,300.55

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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.