Home / 401,763.36-554,296.11-229,557.78

Finding the Fourth Proportional to 401,763.36, 554,296.11 and 229,557.78

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Solution

The fourth proportional to 401,763.36, 554,296.11 and 229,557.78 is: 316,711.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,763.36 : 554,296.11 = 229,557.78 : x
  2. Step 2: Convert to fraction form
    401,763.36/554,296.11 = 229,557.78/x
  3. Step 3: Cross multiply
    401,763.36x = 554,296.11 × 229,557.78
  4. Step 4: Simplify right side
    401,763.36x = 127,242,984,474.24
  5. Step 5: Solve for x
    x = 127,242,984,474.24/401,763.36
  6. Step 6: Final answer
    x = 316,711.27

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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.