Home / 203,213.40-304,492.05-128,199.30

Finding the Fourth Proportional to 203,213.40, 304,492.05 and 128,199.30

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Solution

The fourth proportional to 203,213.40, 304,492.05 and 128,199.30 is: 192,092.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,213.40 : 304,492.05 = 128,199.30 : x
  2. Step 2: Convert to fraction form
    203,213.40/304,492.05 = 128,199.30/x
  3. Step 3: Cross multiply
    203,213.40x = 304,492.05 × 128,199.30
  4. Step 4: Simplify right side
    203,213.40x = 39,035,667,665.57
  5. Step 5: Solve for x
    x = 39,035,667,665.57/203,213.40
  6. Step 6: Final answer
    x = 192,092.00

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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.