Home / 272,600.40-408,984.27-139,574.06

Finding the Fourth Proportional to 272,600.40, 408,984.27 and 139,574.06

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Solution

The fourth proportional to 272,600.40, 408,984.27 and 139,574.06 is: 209,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,600.40 : 408,984.27 = 139,574.06 : x
  2. Step 2: Convert to fraction form
    272,600.40/408,984.27 = 139,574.06/x
  3. Step 3: Cross multiply
    272,600.40x = 408,984.27 × 139,574.06
  4. Step 4: Simplify right side
    272,600.40x = 57,083,592,995.11
  5. Step 5: Solve for x
    x = 57,083,592,995.11/272,600.40
  6. Step 6: Final answer
    x = 209,403.92

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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.