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Finding the Fourth Proportional to 223,483.56, 308,402.84 and 121,511.04

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Solution

The fourth proportional to 223,483.56, 308,402.84 and 121,511.04 is: 167,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,483.56 : 308,402.84 = 121,511.04 : x
  2. Step 2: Convert to fraction form
    223,483.56/308,402.84 = 121,511.04/x
  3. Step 3: Cross multiply
    223,483.56x = 308,402.84 × 121,511.04
  4. Step 4: Simplify right side
    223,483.56x = 37,474,349,827.35
  5. Step 5: Solve for x
    x = 37,474,349,827.35/223,483.56
  6. Step 6: Final answer
    x = 167,682.80

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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.