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Finding the Fourth Proportional to 354,492.72, 489,189.24 and 193,350.24

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Solution

The fourth proportional to 354,492.72, 489,189.24 and 193,350.24 is: 266,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,492.72 : 489,189.24 = 193,350.24 : x
  2. Step 2: Convert to fraction form
    354,492.72/489,189.24 = 193,350.24/x
  3. Step 3: Cross multiply
    354,492.72x = 489,189.24 × 193,350.24
  4. Step 4: Simplify right side
    354,492.72x = 94,584,856,959.42
  5. Step 5: Solve for x
    x = 94,584,856,959.42/354,492.72
  6. Step 6: Final answer
    x = 266,817.49

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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.