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Finding the Fourth Proportional to 351,445.60, 484,984.56 and 198,490.06

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Solution

The fourth proportional to 351,445.60, 484,984.56 and 198,490.06 is: 273,910.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,445.60 : 484,984.56 = 198,490.06 : x
  2. Step 2: Convert to fraction form
    351,445.60/484,984.56 = 198,490.06/x
  3. Step 3: Cross multiply
    351,445.60x = 484,984.56 × 198,490.06
  4. Step 4: Simplify right side
    351,445.60x = 96,264,614,413.47
  5. Step 5: Solve for x
    x = 96,264,614,413.47/351,445.60
  6. Step 6: Final answer
    x = 273,910.43

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1.5x scale

Why These Related Problems?

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