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Finding the Fourth Proportional to 227,613.60, 341,420.40 and 139,040.10

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Solution

The fourth proportional to 227,613.60, 341,420.40 and 139,040.10 is: 208,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,613.60 : 341,420.40 = 139,040.10 : x
  2. Step 2: Convert to fraction form
    227,613.60/341,420.40 = 139,040.10/x
  3. Step 3: Cross multiply
    227,613.60x = 341,420.40 × 139,040.10
  4. Step 4: Simplify right side
    227,613.60x = 47,471,126,558.04
  5. Step 5: Solve for x
    x = 47,471,126,558.04/227,613.60
  6. Step 6: Final answer
    x = 208,560.15

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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.