Home / 399,195.18-550,807.08-229,396.50

Finding the Fourth Proportional to 399,195.18, 550,807.08 and 229,396.50

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Solution

The fourth proportional to 399,195.18, 550,807.08 and 229,396.50 is: 316,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,195.18 : 550,807.08 = 229,396.50 : x
  2. Step 2: Convert to fraction form
    399,195.18/550,807.08 = 229,396.50/x
  3. Step 3: Cross multiply
    399,195.18x = 550,807.08 × 229,396.50
  4. Step 4: Simplify right side
    399,195.18x = 126,353,216,327.22
  5. Step 5: Solve for x
    x = 126,353,216,327.22/399,195.18
  6. Step 6: Final answer
    x = 316,519.89

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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.