Home / 401,565.40-554,067.32-240,359.20

Finding the Fourth Proportional to 401,565.40, 554,067.32 and 240,359.20

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Solution

The fourth proportional to 401,565.40, 554,067.32 and 240,359.20 is: 331,640.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,565.40 : 554,067.32 = 240,359.20 : x
  2. Step 2: Convert to fraction form
    401,565.40/554,067.32 = 240,359.20/x
  3. Step 3: Cross multiply
    401,565.40x = 554,067.32 × 240,359.20
  4. Step 4: Simplify right side
    401,565.40x = 133,175,177,781.34
  5. Step 5: Solve for x
    x = 133,175,177,781.34/401,565.40
  6. Step 6: Final answer
    x = 331,640.07

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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.