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Finding the Fourth Proportional to 401,325.41, 553,807.90 and 229,209.54

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Solution

The fourth proportional to 401,325.41, 553,807.90 and 229,209.54 is: 316,297.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,325.41 : 553,807.90 = 229,209.54 : x
  2. Step 2: Convert to fraction form
    401,325.41/553,807.90 = 229,209.54/x
  3. Step 3: Cross multiply
    401,325.41x = 553,807.90 × 229,209.54
  4. Step 4: Simplify right side
    401,325.41x = 126,938,054,007.37
  5. Step 5: Solve for x
    x = 126,938,054,007.37/401,325.41
  6. Step 6: Final answer
    x = 316,297.08

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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.