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Finding the Fourth Proportional to 191,501.22, 287,271.42 and 73,272

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Solution

The fourth proportional to 191,501.22, 287,271.42 and 73,272 is: 109,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,501.22 : 287,271.42 = 73,272 : x
  2. Step 2: Convert to fraction form
    191,501.22/287,271.42 = 73,272/x
  3. Step 3: Cross multiply
    191,501.22x = 287,271.42 × 73,272
  4. Step 4: Simplify right side
    191,501.22x = 21,048,951,486.24
  5. Step 5: Solve for x
    x = 21,048,951,486.24/191,501.22
  6. Step 6: Final answer
    x = 109,915.50

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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.