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Finding the Fourth Proportional to 271,547.72, 407,341.56 and 71,866.76

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Solution

The fourth proportional to 271,547.72, 407,341.56 and 71,866.76 is: 107,805.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,547.72 : 407,341.56 = 71,866.76 : x
  2. Step 2: Convert to fraction form
    271,547.72/407,341.56 = 71,866.76/x
  3. Step 3: Cross multiply
    271,547.72x = 407,341.56 × 71,866.76
  4. Step 4: Simplify right side
    271,547.72x = 29,274,316,363.34
  5. Step 5: Solve for x
    x = 29,274,316,363.34/271,547.72
  6. Step 6: Final answer
    x = 107,805.42

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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.