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Finding the Fourth Proportional to 243,886.55, 336,416.10 and 161,101.04

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Solution

The fourth proportional to 243,886.55, 336,416.10 and 161,101.04 is: 222,222.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,886.55 : 336,416.10 = 161,101.04 : x
  2. Step 2: Convert to fraction form
    243,886.55/336,416.10 = 161,101.04/x
  3. Step 3: Cross multiply
    243,886.55x = 336,416.10 × 161,101.04
  4. Step 4: Simplify right side
    243,886.55x = 54,196,983,582.74
  5. Step 5: Solve for x
    x = 54,196,983,582.74/243,886.55
  6. Step 6: Final answer
    x = 222,222.11

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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.