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Finding the Fourth Proportional to 202,355.34, 303,534.22 and 90,009.15

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Solution

The fourth proportional to 202,355.34, 303,534.22 and 90,009.15 is: 135,014.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,355.34 : 303,534.22 = 90,009.15 : x
  2. Step 2: Convert to fraction form
    202,355.34/303,534.22 = 90,009.15/x
  3. Step 3: Cross multiply
    202,355.34x = 303,534.22 × 90,009.15
  4. Step 4: Simplify right side
    202,355.34x = 27,320,857,138.11
  5. Step 5: Solve for x
    x = 27,320,857,138.11/202,355.34
  6. Step 6: Final answer
    x = 135,014.26

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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.