Home / 400,884.30-553,266.99-231,124.50

Finding the Fourth Proportional to 400,884.30, 553,266.99 and 231,124.50

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Solution

The fourth proportional to 400,884.30, 553,266.99 and 231,124.50 is: 318,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,884.30 : 553,266.99 = 231,124.50 : x
  2. Step 2: Convert to fraction form
    400,884.30/553,266.99 = 231,124.50/x
  3. Step 3: Cross multiply
    400,884.30x = 553,266.99 × 231,124.50
  4. Step 4: Simplify right side
    400,884.30x = 127,873,556,430.26
  5. Step 5: Solve for x
    x = 127,873,556,430.26/400,884.30
  6. Step 6: Final answer
    x = 318,978.71

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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.