Home / 401,034.07-553,390.21-231,235.39

Finding the Fourth Proportional to 401,034.07, 553,390.21 and 231,235.39

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Solution

The fourth proportional to 401,034.07, 553,390.21 and 231,235.39 is: 319,083.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,034.07 : 553,390.21 = 231,235.39 : x
  2. Step 2: Convert to fraction form
    401,034.07/553,390.21 = 231,235.39/x
  3. Step 3: Cross multiply
    401,034.07x = 553,390.21 × 231,235.39
  4. Step 4: Simplify right side
    401,034.07x = 127,963,401,031.53
  5. Step 5: Solve for x
    x = 127,963,401,031.53/401,034.07
  6. Step 6: Final answer
    x = 319,083.62

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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.