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Finding the Fourth Proportional to 400,436, 552,601.59 and 219,148.01

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Solution

The fourth proportional to 400,436, 552,601.59 and 219,148.01 is: 302,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,436 : 552,601.59 = 219,148.01 : x
  2. Step 2: Convert to fraction form
    400,436/552,601.59 = 219,148.01/x
  3. Step 3: Cross multiply
    400,436x = 552,601.59 × 219,148.01
  4. Step 4: Simplify right side
    400,436x = 121,101,538,771.34
  5. Step 5: Solve for x
    x = 121,101,538,771.34/400,436
  6. Step 6: Final answer
    x = 302,424.20

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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.