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Finding the Fourth Proportional to 202,457.70, 303,686.55 and 191,571.30

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Solution

The fourth proportional to 202,457.70, 303,686.55 and 191,571.30 is: 287,356.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,457.70 : 303,686.55 = 191,571.30 : x
  2. Step 2: Convert to fraction form
    202,457.70/303,686.55 = 191,571.30/x
  3. Step 3: Cross multiply
    202,457.70x = 303,686.55 × 191,571.30
  4. Step 4: Simplify right side
    202,457.70x = 58,177,627,176.02
  5. Step 5: Solve for x
    x = 58,177,627,176.02/202,457.70
  6. Step 6: Final answer
    x = 287,356.95

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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.