Home / 401,695.68-554,389.20-231,929.52

Finding the Fourth Proportional to 401,695.68, 554,389.20 and 231,929.52

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Solution

The fourth proportional to 401,695.68, 554,389.20 and 231,929.52 is: 320,091.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,695.68 : 554,389.20 = 231,929.52 : x
  2. Step 2: Convert to fraction form
    401,695.68/554,389.20 = 231,929.52/x
  3. Step 3: Cross multiply
    401,695.68x = 554,389.20 × 231,929.52
  4. Step 4: Simplify right side
    401,695.68x = 128,579,221,049.18
  5. Step 5: Solve for x
    x = 128,579,221,049.18/401,695.68
  6. Step 6: Final answer
    x = 320,091.12

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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.