Home / 272,611.68-409,001.19-139,585.38

Finding the Fourth Proportional to 272,611.68, 409,001.19 and 139,585.38

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Solution

The fourth proportional to 272,611.68, 409,001.19 and 139,585.38 is: 209,420.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,611.68 : 409,001.19 = 139,585.38 : x
  2. Step 2: Convert to fraction form
    272,611.68/409,001.19 = 139,585.38/x
  3. Step 3: Cross multiply
    272,611.68x = 409,001.19 × 139,585.38
  4. Step 4: Simplify right side
    272,611.68x = 57,090,586,526.60
  5. Step 5: Solve for x
    x = 57,090,586,526.60/272,611.68
  6. Step 6: Final answer
    x = 209,420.91

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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.