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Finding the Fourth Proportional to 223,272.32, 308,114.52 and 121,296.96

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Solution

The fourth proportional to 223,272.32, 308,114.52 and 121,296.96 is: 167,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,272.32 : 308,114.52 = 121,296.96 : x
  2. Step 2: Convert to fraction form
    223,272.32/308,114.52 = 121,296.96/x
  3. Step 3: Cross multiply
    223,272.32x = 308,114.52 × 121,296.96
  4. Step 4: Simplify right side
    223,272.32x = 37,373,354,607.86
  5. Step 5: Solve for x
    x = 37,373,354,607.86/223,272.32
  6. Step 6: Final answer
    x = 167,389.11

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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.