Home / 401,437.12-554,007.72-231,682.18

Finding the Fourth Proportional to 401,437.12, 554,007.72 and 231,682.18

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Solution

The fourth proportional to 401,437.12, 554,007.72 and 231,682.18 is: 319,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,437.12 : 554,007.72 = 231,682.18 : x
  2. Step 2: Convert to fraction form
    401,437.12/554,007.72 = 231,682.18/x
  3. Step 3: Cross multiply
    401,437.12x = 554,007.72 × 231,682.18
  4. Step 4: Simplify right side
    401,437.12x = 128,353,716,306.43
  5. Step 5: Solve for x
    x = 128,353,716,306.43/401,437.12
  6. Step 6: Final answer
    x = 319,735.54

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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.