Home / 401,070.20-553,422.71-228,977.22

Finding the Fourth Proportional to 401,070.20, 553,422.71 and 228,977.22

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Solution

The fourth proportional to 401,070.20, 553,422.71 and 228,977.22 is: 315,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,070.20 : 553,422.71 = 228,977.22 : x
  2. Step 2: Convert to fraction form
    401,070.20/553,422.71 = 228,977.22/x
  3. Step 3: Cross multiply
    401,070.20x = 553,422.71 × 228,977.22
  4. Step 4: Simplify right side
    401,070.20x = 126,721,192,475.78
  5. Step 5: Solve for x
    x = 126,721,192,475.78/401,070.20
  6. Step 6: Final answer
    x = 315,957.64

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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.