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Finding the Fourth Proportional to 227,860.60, 341,790.90 and 139,214.20

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Solution

The fourth proportional to 227,860.60, 341,790.90 and 139,214.20 is: 208,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,860.60 : 341,790.90 = 139,214.20 : x
  2. Step 2: Convert to fraction form
    227,860.60/341,790.90 = 139,214.20/x
  3. Step 3: Cross multiply
    227,860.60x = 341,790.90 × 139,214.20
  4. Step 4: Simplify right side
    227,860.60x = 47,582,146,710.78
  5. Step 5: Solve for x
    x = 47,582,146,710.78/227,860.60
  6. Step 6: Final answer
    x = 208,821.30

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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.