Home / 401,404.68-553,933.89-231,635.16

Finding the Fourth Proportional to 401,404.68, 553,933.89 and 231,635.16

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Solution

The fourth proportional to 401,404.68, 553,933.89 and 231,635.16 is: 319,653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,404.68 : 553,933.89 = 231,635.16 : x
  2. Step 2: Convert to fraction form
    401,404.68/553,933.89 = 231,635.16/x
  3. Step 3: Cross multiply
    401,404.68x = 553,933.89 × 231,635.16
  4. Step 4: Simplify right side
    401,404.68x = 128,310,565,239.57
  5. Step 5: Solve for x
    x = 128,310,565,239.57/401,404.68
  6. Step 6: Final answer
    x = 319,653.88

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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.