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Finding the Fourth Proportional to 202,299.60, 303,643.80 and 102,572.40

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Solution

The fourth proportional to 202,299.60, 303,643.80 and 102,572.40 is: 153,957.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,299.60 : 303,643.80 = 102,572.40 : x
  2. Step 2: Convert to fraction form
    202,299.60/303,643.80 = 102,572.40/x
  3. Step 3: Cross multiply
    202,299.60x = 303,643.80 × 102,572.40
  4. Step 4: Simplify right side
    202,299.60x = 31,145,473,311.12
  5. Step 5: Solve for x
    x = 31,145,473,311.12/202,299.60
  6. Step 6: Final answer
    x = 153,957.17

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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.