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Finding the Fourth Proportional to 201,340.60, 302,010.90 and 76,665.40

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Solution

The fourth proportional to 201,340.60, 302,010.90 and 76,665.40 is: 114,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,340.60 : 302,010.90 = 76,665.40 : x
  2. Step 2: Convert to fraction form
    201,340.60/302,010.90 = 76,665.40/x
  3. Step 3: Cross multiply
    201,340.60x = 302,010.90 × 76,665.40
  4. Step 4: Simplify right side
    201,340.60x = 23,153,786,452.86
  5. Step 5: Solve for x
    x = 23,153,786,452.86/201,340.60
  6. Step 6: Final answer
    x = 114,998.10

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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.