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Finding the Fourth Proportional to 363,788.06, 502,027.22 and 210,915

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Solution

The fourth proportional to 363,788.06, 502,027.22 and 210,915 is: 291,062.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,788.06 : 502,027.22 = 210,915 : x
  2. Step 2: Convert to fraction form
    363,788.06/502,027.22 = 210,915/x
  3. Step 3: Cross multiply
    363,788.06x = 502,027.22 × 210,915
  4. Step 4: Simplify right side
    363,788.06x = 105,885,070,051.73
  5. Step 5: Solve for x
    x = 105,885,070,051.73/363,788.06
  6. Step 6: Final answer
    x = 291,062.53

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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.