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Finding the Fourth Proportional to 354,499.22, 489,214.76 and 193,354.28

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Solution

The fourth proportional to 354,499.22, 489,214.76 and 193,354.28 is: 266,832.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,499.22 : 489,214.76 = 193,354.28 : x
  2. Step 2: Convert to fraction form
    354,499.22/489,214.76 = 193,354.28/x
  3. Step 3: Cross multiply
    354,499.22x = 489,214.76 × 193,354.28
  4. Step 4: Simplify right side
    354,499.22x = 94,591,767,685.17
  5. Step 5: Solve for x
    x = 94,591,767,685.17/354,499.22
  6. Step 6: Final answer
    x = 266,832.09

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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.