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Finding the Fourth Proportional to 207,877.60, 311,355.60 and 160,978.40

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Solution

The fourth proportional to 207,877.60, 311,355.60 and 160,978.40 is: 241,110.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,877.60 : 311,355.60 = 160,978.40 : x
  2. Step 2: Convert to fraction form
    207,877.60/311,355.60 = 160,978.40/x
  3. Step 3: Cross multiply
    207,877.60x = 311,355.60 × 160,978.40
  4. Step 4: Simplify right side
    207,877.60x = 50,121,526,319.04
  5. Step 5: Solve for x
    x = 50,121,526,319.04/207,877.60
  6. Step 6: Final answer
    x = 241,110.76

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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.