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Finding the Fourth Proportional to 353,702, 487,027.80 and 266,613.64

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Solution

The fourth proportional to 353,702, 487,027.80 and 266,613.64 is: 367,112.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,702 : 487,027.80 = 266,613.64 : x
  2. Step 2: Convert to fraction form
    353,702/487,027.80 = 266,613.64/x
  3. Step 3: Cross multiply
    353,702x = 487,027.80 × 266,613.64
  4. Step 4: Simplify right side
    353,702x = 129,848,254,539.19
  5. Step 5: Solve for x
    x = 129,848,254,539.19/353,702
  6. Step 6: Final answer
    x = 367,112.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.