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Finding the Fourth Proportional to 191,658.81, 264,489.51 and 115,179.08

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Solution

The fourth proportional to 191,658.81, 264,489.51 and 115,179.08 is: 158,947.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,658.81 : 264,489.51 = 115,179.08 : x
  2. Step 2: Convert to fraction form
    191,658.81/264,489.51 = 115,179.08/x
  3. Step 3: Cross multiply
    191,658.81x = 264,489.51 × 115,179.08
  4. Step 4: Simplify right side
    191,658.81x = 30,463,657,109.00
  5. Step 5: Solve for x
    x = 30,463,657,109.00/191,658.81
  6. Step 6: Final answer
    x = 158,947.34

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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.