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Finding the Fourth Proportional to 201,992.67, 278,748 and 110,111.94

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Solution

The fourth proportional to 201,992.67, 278,748 and 110,111.94 is: 151,953.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,992.67 : 278,748 = 110,111.94 : x
  2. Step 2: Convert to fraction form
    201,992.67/278,748 = 110,111.94/x
  3. Step 3: Cross multiply
    201,992.67x = 278,748 × 110,111.94
  4. Step 4: Simplify right side
    201,992.67x = 30,693,483,051.12
  5. Step 5: Solve for x
    x = 30,693,483,051.12/201,992.67
  6. Step 6: Final answer
    x = 151,953.45

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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.