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Finding the Fourth Proportional to 191,402.82, 286,892.76 and 79,021.08

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Solution

The fourth proportional to 191,402.82, 286,892.76 and 79,021.08 is: 118,444.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,402.82 : 286,892.76 = 79,021.08 : x
  2. Step 2: Convert to fraction form
    191,402.82/286,892.76 = 79,021.08/x
  3. Step 3: Cross multiply
    191,402.82x = 286,892.76 × 79,021.08
  4. Step 4: Simplify right side
    191,402.82x = 22,670,575,739.38
  5. Step 5: Solve for x
    x = 22,670,575,739.38/191,402.82
  6. Step 6: Final answer
    x = 118,444.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.