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Finding the Fourth Proportional to 660,838.38, 991,260.81 and 162,202.38

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Solution

The fourth proportional to 660,838.38, 991,260.81 and 162,202.38 is: 243,304.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,838.38 : 991,260.81 = 162,202.38 : x
  2. Step 2: Convert to fraction form
    660,838.38/991,260.81 = 162,202.38/x
  3. Step 3: Cross multiply
    660,838.38x = 991,260.81 × 162,202.38
  4. Step 4: Simplify right side
    660,838.38x = 160,784,862,582.73
  5. Step 5: Solve for x
    x = 160,784,862,582.73/660,838.38
  6. Step 6: Final answer
    x = 243,304.37

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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.