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Finding the Fourth Proportional to 191,506.69, 287,279.70 and 73,277.47

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Solution

The fourth proportional to 191,506.69, 287,279.70 and 73,277.47 is: 109,923.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,506.69 : 287,279.70 = 73,277.47 : x
  2. Step 2: Convert to fraction form
    191,506.69/287,279.70 = 73,277.47/x
  3. Step 3: Cross multiply
    191,506.69x = 287,279.70 × 73,277.47
  4. Step 4: Simplify right side
    191,506.69x = 21,051,129,598.36
  5. Step 5: Solve for x
    x = 21,051,129,598.36/191,506.69
  6. Step 6: Final answer
    x = 109,923.73

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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.