Home / 401,990.04-554,725.44-238,653.36

Finding the Fourth Proportional to 401,990.04, 554,725.44 and 238,653.36

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Solution

The fourth proportional to 401,990.04, 554,725.44 and 238,653.36 is: 329,329.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,990.04 : 554,725.44 = 238,653.36 : x
  2. Step 2: Convert to fraction form
    401,990.04/554,725.44 = 238,653.36/x
  3. Step 3: Cross multiply
    401,990.04x = 554,725.44 × 238,653.36
  4. Step 4: Simplify right side
    401,990.04x = 132,387,090,133.48
  5. Step 5: Solve for x
    x = 132,387,090,133.48/401,990.04
  6. Step 6: Final answer
    x = 329,329.28

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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.