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Finding the Fourth Proportional to 354,378.96, 489,024.84 and 193,232.64

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Solution

The fourth proportional to 354,378.96, 489,024.84 and 193,232.64 is: 266,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,378.96 : 489,024.84 = 193,232.64 : x
  2. Step 2: Convert to fraction form
    354,378.96/489,024.84 = 193,232.64/x
  3. Step 3: Cross multiply
    354,378.96x = 489,024.84 × 193,232.64
  4. Step 4: Simplify right side
    354,378.96x = 94,495,560,858.78
  5. Step 5: Solve for x
    x = 94,495,560,858.78/354,378.96
  6. Step 6: Final answer
    x = 266,651.16

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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.