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Finding the Fourth Proportional to 207,261.60, 310,892.40 and 74,133.78

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Solution

The fourth proportional to 207,261.60, 310,892.40 and 74,133.78 is: 111,200.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,261.60 : 310,892.40 = 74,133.78 : x
  2. Step 2: Convert to fraction form
    207,261.60/310,892.40 = 74,133.78/x
  3. Step 3: Cross multiply
    207,261.60x = 310,892.40 × 74,133.78
  4. Step 4: Simplify right side
    207,261.60x = 23,047,628,785.27
  5. Step 5: Solve for x
    x = 23,047,628,785.27/207,261.60
  6. Step 6: Final answer
    x = 111,200.67

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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.