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Finding the Fourth Proportional to 188,400.60, 282,600.90 and 113,605.20

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Solution

The fourth proportional to 188,400.60, 282,600.90 and 113,605.20 is: 170,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,400.60 : 282,600.90 = 113,605.20 : x
  2. Step 2: Convert to fraction form
    188,400.60/282,600.90 = 113,605.20/x
  3. Step 3: Cross multiply
    188,400.60x = 282,600.90 × 113,605.20
  4. Step 4: Simplify right side
    188,400.60x = 32,104,931,764.68
  5. Step 5: Solve for x
    x = 32,104,931,764.68/188,400.60
  6. Step 6: Final answer
    x = 170,407.80

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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.