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Finding the Fourth Proportional to 363,705.78, 502,122.16 and 243,051.42

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Solution

The fourth proportional to 363,705.78, 502,122.16 and 243,051.42 is: 335,550.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,705.78 : 502,122.16 = 243,051.42 : x
  2. Step 2: Convert to fraction form
    363,705.78/502,122.16 = 243,051.42/x
  3. Step 3: Cross multiply
    363,705.78x = 502,122.16 × 243,051.42
  4. Step 4: Simplify right side
    363,705.78x = 122,041,504,001.47
  5. Step 5: Solve for x
    x = 122,041,504,001.47/363,705.78
  6. Step 6: Final answer
    x = 335,550.08

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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.