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Finding the Fourth Proportional to 400,369.60, 552,455.56 and 239,190.52

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Solution

The fourth proportional to 400,369.60, 552,455.56 and 239,190.52 is: 330,050.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,369.60 : 552,455.56 = 239,190.52 : x
  2. Step 2: Convert to fraction form
    400,369.60/552,455.56 = 239,190.52/x
  3. Step 3: Cross multiply
    400,369.60x = 552,455.56 × 239,190.52
  4. Step 4: Simplify right side
    400,369.60x = 132,142,132,673.29
  5. Step 5: Solve for x
    x = 132,142,132,673.29/400,369.60
  6. Step 6: Final answer
    x = 330,050.37

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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.