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Finding the Fourth Proportional to 290,289.76, 400,572.48 and 162,940.48

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Solution

The fourth proportional to 290,289.76, 400,572.48 and 162,940.48 is: 224,842.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,289.76 : 400,572.48 = 162,940.48 : x
  2. Step 2: Convert to fraction form
    290,289.76/400,572.48 = 162,940.48/x
  3. Step 3: Cross multiply
    290,289.76x = 400,572.48 × 162,940.48
  4. Step 4: Simplify right side
    290,289.76x = 65,269,472,165.99
  5. Step 5: Solve for x
    x = 65,269,472,165.99/290,289.76
  6. Step 6: Final answer
    x = 224,842.49

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1.5x scale

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.