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Finding the Fourth Proportional to 283,247.60, 424,871.40 and 198,460.40

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Solution

The fourth proportional to 283,247.60, 424,871.40 and 198,460.40 is: 297,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,247.60 : 424,871.40 = 198,460.40 : x
  2. Step 2: Convert to fraction form
    283,247.60/424,871.40 = 198,460.40/x
  3. Step 3: Cross multiply
    283,247.60x = 424,871.40 × 198,460.40
  4. Step 4: Simplify right side
    283,247.60x = 84,320,147,992.56
  5. Step 5: Solve for x
    x = 84,320,147,992.56/283,247.60
  6. Step 6: Final answer
    x = 297,690.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.