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Finding the Fourth Proportional to 252,358.50, 378,537.75 and 65,370

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Solution

The fourth proportional to 252,358.50, 378,537.75 and 65,370 is: 98,055

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,358.50 : 378,537.75 = 65,370 : x
  2. Step 2: Convert to fraction form
    252,358.50/378,537.75 = 65,370/x
  3. Step 3: Cross multiply
    252,358.50x = 378,537.75 × 65,370
  4. Step 4: Simplify right side
    252,358.50x = 24,745,012,717.50
  5. Step 5: Solve for x
    x = 24,745,012,717.50/252,358.50
  6. Step 6: Final answer
    x = 98,055

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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.