Home / 401,030.07-553,384.70-231,231.39

Finding the Fourth Proportional to 401,030.07, 553,384.70 and 231,231.39

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Solution

The fourth proportional to 401,030.07, 553,384.70 and 231,231.39 is: 319,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,030.07 : 553,384.70 = 231,231.39 : x
  2. Step 2: Convert to fraction form
    401,030.07/553,384.70 = 231,231.39/x
  3. Step 3: Cross multiply
    401,030.07x = 553,384.70 × 231,231.39
  4. Step 4: Simplify right side
    401,030.07x = 127,959,912,229.58
  5. Step 5: Solve for x
    x = 127,959,912,229.58/401,030.07
  6. Step 6: Final answer
    x = 319,078.10

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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.