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Finding the Fourth Proportional to 301,989.20, 452,983.80 and 202,456.40

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Solution

The fourth proportional to 301,989.20, 452,983.80 and 202,456.40 is: 303,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,989.20 : 452,983.80 = 202,456.40 : x
  2. Step 2: Convert to fraction form
    301,989.20/452,983.80 = 202,456.40/x
  3. Step 3: Cross multiply
    301,989.20x = 452,983.80 × 202,456.40
  4. Step 4: Simplify right side
    301,989.20x = 91,709,469,406.32
  5. Step 5: Solve for x
    x = 91,709,469,406.32/301,989.20
  6. Step 6: Final answer
    x = 303,684.60

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1.5x scale

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.