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Finding the Fourth Proportional to 227,411.10, 340,460.55 and 138,837.60

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Solution

The fourth proportional to 227,411.10, 340,460.55 and 138,837.60 is: 207,855.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,411.10 : 340,460.55 = 138,837.60 : x
  2. Step 2: Convert to fraction form
    227,411.10/340,460.55 = 138,837.60/x
  3. Step 3: Cross multiply
    227,411.10x = 340,460.55 × 138,837.60
  4. Step 4: Simplify right side
    227,411.10x = 47,268,725,656.68
  5. Step 5: Solve for x
    x = 47,268,725,656.68/227,411.10
  6. Step 6: Final answer
    x = 207,855.84

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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.