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Finding the Fourth Proportional to 272,511.81, 375,744.63 and 186,512.29

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Solution

The fourth proportional to 272,511.81, 375,744.63 and 186,512.29 is: 257,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,511.81 : 375,744.63 = 186,512.29 : x
  2. Step 2: Convert to fraction form
    272,511.81/375,744.63 = 186,512.29/x
  3. Step 3: Cross multiply
    272,511.81x = 375,744.63 × 186,512.29
  4. Step 4: Simplify right side
    272,511.81x = 70,080,991,396.50
  5. Step 5: Solve for x
    x = 70,080,991,396.50/272,511.81
  6. Step 6: Final answer
    x = 257,166.80

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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.