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Finding the Fourth Proportional to 202,215.30, 303,322.95 and 127,419.90

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Solution

The fourth proportional to 202,215.30, 303,322.95 and 127,419.90 is: 191,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,215.30 : 303,322.95 = 127,419.90 : x
  2. Step 2: Convert to fraction form
    202,215.30/303,322.95 = 127,419.90/x
  3. Step 3: Cross multiply
    202,215.30x = 303,322.95 × 127,419.90
  4. Step 4: Simplify right side
    202,215.30x = 38,649,379,956.71
  5. Step 5: Solve for x
    x = 38,649,379,956.71/202,215.30
  6. Step 6: Final answer
    x = 191,129.85

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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.