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Finding the Fourth Proportional to 202,238.40, 303,394.05 and 83,921.70

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Solution

The fourth proportional to 202,238.40, 303,394.05 and 83,921.70 is: 125,897.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,238.40 : 303,394.05 = 83,921.70 : x
  2. Step 2: Convert to fraction form
    202,238.40/303,394.05 = 83,921.70/x
  3. Step 3: Cross multiply
    202,238.40x = 303,394.05 × 83,921.70
  4. Step 4: Simplify right side
    202,238.40x = 25,461,344,445.89
  5. Step 5: Solve for x
    x = 25,461,344,445.89/202,238.40
  6. Step 6: Final answer
    x = 125,897.68

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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.