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Finding the Fourth Proportional to 360,083.78, 540,206.03 and 135,446.07

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Solution

The fourth proportional to 360,083.78, 540,206.03 and 135,446.07 is: 203,199.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,083.78 : 540,206.03 = 135,446.07 : x
  2. Step 2: Convert to fraction form
    360,083.78/540,206.03 = 135,446.07/x
  3. Step 3: Cross multiply
    360,083.78x = 540,206.03 × 135,446.07
  4. Step 4: Simplify right side
    360,083.78x = 73,168,783,753.80
  5. Step 5: Solve for x
    x = 73,168,783,753.80/360,083.78
  6. Step 6: Final answer
    x = 203,199.33

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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.