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Finding the Fourth Proportional to 192,679.60, 289,710.60 and 162,266.80

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Solution

The fourth proportional to 192,679.60, 289,710.60 and 162,266.80 is: 243,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,679.60 : 289,710.60 = 162,266.80 : x
  2. Step 2: Convert to fraction form
    192,679.60/289,710.60 = 162,266.80/x
  3. Step 3: Cross multiply
    192,679.60x = 289,710.60 × 162,266.80
  4. Step 4: Simplify right side
    192,679.60x = 47,010,411,988.08
  5. Step 5: Solve for x
    x = 47,010,411,988.08/192,679.60
  6. Step 6: Final answer
    x = 243,982.30

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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.