Home / 400,948.97-553,309.38-239,804.01

Finding the Fourth Proportional to 400,948.97, 553,309.38 and 239,804.01

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Solution

The fourth proportional to 400,948.97, 553,309.38 and 239,804.01 is: 330,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,948.97 : 553,309.38 = 239,804.01 : x
  2. Step 2: Convert to fraction form
    400,948.97/553,309.38 = 239,804.01/x
  3. Step 3: Cross multiply
    400,948.97x = 553,309.38 × 239,804.01
  4. Step 4: Simplify right side
    400,948.97x = 132,685,808,094.61
  5. Step 5: Solve for x
    x = 132,685,808,094.61/400,948.97
  6. Step 6: Final answer
    x = 330,929.42

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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.