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Finding the Fourth Proportional to 400,338.77, 552,412.98 and 239,159.58

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Solution

The fourth proportional to 400,338.77, 552,412.98 and 239,159.58 is: 330,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,338.77 : 552,412.98 = 239,159.58 : x
  2. Step 2: Convert to fraction form
    400,338.77/552,412.98 = 239,159.58/x
  3. Step 3: Cross multiply
    400,338.77x = 552,412.98 × 239,159.58
  4. Step 4: Simplify right side
    400,338.77x = 132,114,856,283.35
  5. Step 5: Solve for x
    x = 132,114,856,283.35/400,338.77
  6. Step 6: Final answer
    x = 330,007.65

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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.