Home / 272,571.86-408,941.54-139,545.50

Finding the Fourth Proportional to 272,571.86, 408,941.54 and 139,545.50

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Solution

The fourth proportional to 272,571.86, 408,941.54 and 139,545.50 is: 209,361.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,571.86 : 408,941.54 = 139,545.50 : x
  2. Step 2: Convert to fraction form
    272,571.86/408,941.54 = 139,545.50/x
  3. Step 3: Cross multiply
    272,571.86x = 408,941.54 × 139,545.50
  4. Step 4: Simplify right side
    272,571.86x = 57,065,948,927.63
  5. Step 5: Solve for x
    x = 57,065,948,927.63/272,571.86
  6. Step 6: Final answer
    x = 209,361.12

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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.