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Finding the Fourth Proportional to 207,331.92, 310,620.60 and 144,018.28

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Solution

The fourth proportional to 207,331.92, 310,620.60 and 144,018.28 is: 215,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,331.92 : 310,620.60 = 144,018.28 : x
  2. Step 2: Convert to fraction form
    207,331.92/310,620.60 = 144,018.28/x
  3. Step 3: Cross multiply
    207,331.92x = 310,620.60 × 144,018.28
  4. Step 4: Simplify right side
    207,331.92x = 44,735,044,544.57
  5. Step 5: Solve for x
    x = 44,735,044,544.57/207,331.92
  6. Step 6: Final answer
    x = 215,765.35

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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.