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Finding the Fourth Proportional to 270,640.60, 406,058.10 and 112,917.40

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Solution

The fourth proportional to 270,640.60, 406,058.10 and 112,917.40 is: 169,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,640.60 : 406,058.10 = 112,917.40 : x
  2. Step 2: Convert to fraction form
    270,640.60/406,058.10 = 112,917.40/x
  3. Step 3: Cross multiply
    270,640.60x = 406,058.10 × 112,917.40
  4. Step 4: Simplify right side
    270,640.60x = 45,851,024,900.94
  5. Step 5: Solve for x
    x = 45,851,024,900.94/270,640.60
  6. Step 6: Final answer
    x = 169,416.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.