Home / 400,964.58-553,130.57-239,777.21

Finding the Fourth Proportional to 400,964.58, 553,130.57 and 239,777.21

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Solution

The fourth proportional to 400,964.58, 553,130.57 and 239,777.21 is: 330,772.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,964.58 : 553,130.57 = 239,777.21 : x
  2. Step 2: Convert to fraction form
    400,964.58/553,130.57 = 239,777.21/x
  3. Step 3: Cross multiply
    400,964.58x = 553,130.57 × 239,777.21
  4. Step 4: Simplify right side
    400,964.58x = 132,628,106,822.58
  5. Step 5: Solve for x
    x = 132,628,106,822.58/400,964.58
  6. Step 6: Final answer
    x = 330,772.63

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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.