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Finding the Fourth Proportional to 191,701.98, 287,415.45 and 73,273.50

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Solution

The fourth proportional to 191,701.98, 287,415.45 and 73,273.50 is: 109,857.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,701.98 : 287,415.45 = 73,273.50 : x
  2. Step 2: Convert to fraction form
    191,701.98/287,415.45 = 73,273.50/x
  3. Step 3: Cross multiply
    191,701.98x = 287,415.45 × 73,273.50
  4. Step 4: Simplify right side
    191,701.98x = 21,059,935,975.58
  5. Step 5: Solve for x
    x = 21,059,935,975.58/191,701.98
  6. Step 6: Final answer
    x = 109,857.69

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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.