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Finding the Fourth Proportional to 401,357.80, 553,852.49 and 229,241.96

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Solution

The fourth proportional to 401,357.80, 553,852.49 and 229,241.96 is: 316,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,357.80 : 553,852.49 = 229,241.96 : x
  2. Step 2: Convert to fraction form
    401,357.80/553,852.49 = 229,241.96/x
  3. Step 3: Cross multiply
    401,357.80x = 553,852.49 × 229,241.96
  4. Step 4: Simplify right side
    401,357.80x = 126,966,231,635.38
  5. Step 5: Solve for x
    x = 126,966,231,635.38/401,357.80
  6. Step 6: Final answer
    x = 316,341.76

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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.