Home / 401,024.12-553,392.20-228,935.30

Finding the Fourth Proportional to 401,024.12, 553,392.20 and 228,935.30

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Solution

The fourth proportional to 401,024.12, 553,392.20 and 228,935.30 is: 315,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,024.12 : 553,392.20 = 228,935.30 : x
  2. Step 2: Convert to fraction form
    401,024.12/553,392.20 = 228,935.30/x
  3. Step 3: Cross multiply
    401,024.12x = 553,392.20 × 228,935.30
  4. Step 4: Simplify right side
    401,024.12x = 126,691,007,130.04
  5. Step 5: Solve for x
    x = 126,691,007,130.04/401,024.12
  6. Step 6: Final answer
    x = 315,918.68

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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.