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Finding the Fourth Proportional to 192,004.40, 288,352.20 and 139,473.20

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Solution

The fourth proportional to 192,004.40, 288,352.20 and 139,473.20 is: 209,460.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,004.40 : 288,352.20 = 139,473.20 : x
  2. Step 2: Convert to fraction form
    192,004.40/288,352.20 = 139,473.20/x
  3. Step 3: Cross multiply
    192,004.40x = 288,352.20 × 139,473.20
  4. Step 4: Simplify right side
    192,004.40x = 40,217,404,061.04
  5. Step 5: Solve for x
    x = 40,217,404,061.04/192,004.40
  6. Step 6: Final answer
    x = 209,460.85

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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.