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Finding the Fourth Proportional to 358,875.87, 495,236.97 and 205,911.60

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Solution

The fourth proportional to 358,875.87, 495,236.97 and 205,911.60 is: 284,151.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,875.87 : 495,236.97 = 205,911.60 : x
  2. Step 2: Convert to fraction form
    358,875.87/495,236.97 = 205,911.60/x
  3. Step 3: Cross multiply
    358,875.87x = 495,236.97 × 205,911.60
  4. Step 4: Simplify right side
    358,875.87x = 101,975,036,871.85
  5. Step 5: Solve for x
    x = 101,975,036,871.85/358,875.87
  6. Step 6: Final answer
    x = 284,151.28

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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.