Home / 401,543.28-554,119.74-229,450.33

Finding the Fourth Proportional to 401,543.28, 554,119.74 and 229,450.33

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Solution

The fourth proportional to 401,543.28, 554,119.74 and 229,450.33 is: 316,635.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,543.28 : 554,119.74 = 229,450.33 : x
  2. Step 2: Convert to fraction form
    401,543.28/554,119.74 = 229,450.33/x
  3. Step 3: Cross multiply
    401,543.28x = 554,119.74 × 229,450.33
  4. Step 4: Simplify right side
    401,543.28x = 127,142,953,858.29
  5. Step 5: Solve for x
    x = 127,142,953,858.29/401,543.28
  6. Step 6: Final answer
    x = 316,635.74

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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.