Home / 203,450.20-305,088.90-98,301.40

Finding the Fourth Proportional to 203,450.20, 305,088.90 and 98,301.40

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Solution

The fourth proportional to 203,450.20, 305,088.90 and 98,301.40 is: 147,410.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,450.20 : 305,088.90 = 98,301.40 : x
  2. Step 2: Convert to fraction form
    203,450.20/305,088.90 = 98,301.40/x
  3. Step 3: Cross multiply
    203,450.20x = 305,088.90 × 98,301.40
  4. Step 4: Simplify right side
    203,450.20x = 29,990,665,994.46
  5. Step 5: Solve for x
    x = 29,990,665,994.46/203,450.20
  6. Step 6: Final answer
    x = 147,410.35

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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.