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Finding the Fourth Proportional to 401,369.39, 553,868.43 and 229,253.54

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Solution

The fourth proportional to 401,369.39, 553,868.43 and 229,253.54 is: 316,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,369.39 : 553,868.43 = 229,253.54 : x
  2. Step 2: Convert to fraction form
    401,369.39/553,868.43 = 229,253.54/x
  3. Step 3: Cross multiply
    401,369.39x = 553,868.43 × 229,253.54
  4. Step 4: Simplify right side
    401,369.39x = 126,976,298,271.74
  5. Step 5: Solve for x
    x = 126,976,298,271.74/401,369.39
  6. Step 6: Final answer
    x = 316,357.70

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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.