Home / 272,890.62-409,150.04-139,662.23

Finding the Fourth Proportional to 272,890.62, 409,150.04 and 139,662.23

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Solution

The fourth proportional to 272,890.62, 409,150.04 and 139,662.23 is: 209,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,890.62 : 409,150.04 = 139,662.23 : x
  2. Step 2: Convert to fraction form
    272,890.62/409,150.04 = 139,662.23/x
  3. Step 3: Cross multiply
    272,890.62x = 409,150.04 × 139,662.23
  4. Step 4: Simplify right side
    272,890.62x = 57,142,804,246.93
  5. Step 5: Solve for x
    x = 57,142,804,246.93/272,890.62
  6. Step 6: Final answer
    x = 209,398.20

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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.