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Finding the Fourth Proportional to 266,135.60, 399,203.40 and 161,159.60

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Solution

The fourth proportional to 266,135.60, 399,203.40 and 161,159.60 is: 241,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,135.60 : 399,203.40 = 161,159.60 : x
  2. Step 2: Convert to fraction form
    266,135.60/399,203.40 = 161,159.60/x
  3. Step 3: Cross multiply
    266,135.60x = 399,203.40 × 161,159.60
  4. Step 4: Simplify right side
    266,135.60x = 64,335,460,262.64
  5. Step 5: Solve for x
    x = 64,335,460,262.64/266,135.60
  6. Step 6: Final answer
    x = 241,739.40

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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.