Home / 219,763.04-331,291.71-205,115.45

Finding the Fourth Proportional to 219,763.04, 331,291.71 and 205,115.45

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Solution

The fourth proportional to 219,763.04, 331,291.71 and 205,115.45 is: 309,210.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,763.04 : 331,291.71 = 205,115.45 : x
  2. Step 2: Convert to fraction form
    219,763.04/331,291.71 = 205,115.45/x
  3. Step 3: Cross multiply
    219,763.04x = 331,291.71 × 205,115.45
  4. Step 4: Simplify right side
    219,763.04x = 67,953,046,521.46
  5. Step 5: Solve for x
    x = 67,953,046,521.46/219,763.04
  6. Step 6: Final answer
    x = 309,210.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.