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Finding the Fourth Proportional to 202,238.60, 303,357.90 and 102,705.80

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Solution

The fourth proportional to 202,238.60, 303,357.90 and 102,705.80 is: 154,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,238.60 : 303,357.90 = 102,705.80 : x
  2. Step 2: Convert to fraction form
    202,238.60/303,357.90 = 102,705.80/x
  3. Step 3: Cross multiply
    202,238.60x = 303,357.90 × 102,705.80
  4. Step 4: Simplify right side
    202,238.60x = 31,156,615,805.82
  5. Step 5: Solve for x
    x = 31,156,615,805.82/202,238.60
  6. Step 6: Final answer
    x = 154,058.70

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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.