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Finding the Fourth Proportional to 272,515.32, 375,749.44 and 186,515.80

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Solution

The fourth proportional to 272,515.32, 375,749.44 and 186,515.80 is: 257,171.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,515.32 : 375,749.44 = 186,515.80 : x
  2. Step 2: Convert to fraction form
    272,515.32/375,749.44 = 186,515.80/x
  3. Step 3: Cross multiply
    272,515.32x = 375,749.44 × 186,515.80
  4. Step 4: Simplify right side
    272,515.32x = 70,083,207,401.15
  5. Step 5: Solve for x
    x = 70,083,207,401.15/272,515.32
  6. Step 6: Final answer
    x = 257,171.62

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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.