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Finding the Fourth Proportional to 401,251.69, 553,766.94 and 229,195.38

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Solution

The fourth proportional to 401,251.69, 553,766.94 and 229,195.38 is: 316,312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,251.69 : 553,766.94 = 229,195.38 : x
  2. Step 2: Convert to fraction form
    401,251.69/553,766.94 = 229,195.38/x
  3. Step 3: Cross multiply
    401,251.69x = 553,766.94 × 229,195.38
  4. Step 4: Simplify right side
    401,251.69x = 126,920,824,244.74
  5. Step 5: Solve for x
    x = 126,920,824,244.74/401,251.69
  6. Step 6: Final answer
    x = 316,312.25

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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.