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Finding the Fourth Proportional to 270,646.60, 405,797.10 and 112,937.80

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Solution

The fourth proportional to 270,646.60, 405,797.10 and 112,937.80 is: 169,334.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,646.60 : 405,797.10 = 112,937.80 : x
  2. Step 2: Convert to fraction form
    270,646.60/405,797.10 = 112,937.80/x
  3. Step 3: Cross multiply
    270,646.60x = 405,797.10 × 112,937.80
  4. Step 4: Simplify right side
    270,646.60x = 45,829,831,720.38
  5. Step 5: Solve for x
    x = 45,829,831,720.38/270,646.60
  6. Step 6: Final answer
    x = 169,334.59

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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.