Home / 229,215.40-343,823.10-205,109.80

Finding the Fourth Proportional to 229,215.40, 343,823.10 and 205,109.80

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Solution

The fourth proportional to 229,215.40, 343,823.10 and 205,109.80 is: 307,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,215.40 : 343,823.10 = 205,109.80 : x
  2. Step 2: Convert to fraction form
    229,215.40/343,823.10 = 205,109.80/x
  3. Step 3: Cross multiply
    229,215.40x = 343,823.10 × 205,109.80
  4. Step 4: Simplify right side
    229,215.40x = 70,521,487,276.38
  5. Step 5: Solve for x
    x = 70,521,487,276.38/229,215.40
  6. Step 6: Final answer
    x = 307,664.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.