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Finding the Fourth Proportional to 202,374.30, 303,561.45 and 143,276.70

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Solution

The fourth proportional to 202,374.30, 303,561.45 and 143,276.70 is: 214,915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,374.30 : 303,561.45 = 143,276.70 : x
  2. Step 2: Convert to fraction form
    202,374.30/303,561.45 = 143,276.70/x
  3. Step 3: Cross multiply
    202,374.30x = 303,561.45 × 143,276.70
  4. Step 4: Simplify right side
    202,374.30x = 43,493,282,803.22
  5. Step 5: Solve for x
    x = 43,493,282,803.22/202,374.30
  6. Step 6: Final answer
    x = 214,915.05

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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.