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Finding the Fourth Proportional to 353,328, 487,592.64 and 202,512.48

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Solution

The fourth proportional to 353,328, 487,592.64 and 202,512.48 is: 279,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,328 : 487,592.64 = 202,512.48 : x
  2. Step 2: Convert to fraction form
    353,328/487,592.64 = 202,512.48/x
  3. Step 3: Cross multiply
    353,328x = 487,592.64 × 202,512.48
  4. Step 4: Simplify right side
    353,328x = 98,743,594,756.15
  5. Step 5: Solve for x
    x = 98,743,594,756.15/353,328
  6. Step 6: Final answer
    x = 279,467.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.