Home / 208,931.53-288,327.60-113,439.01

Finding the Fourth Proportional to 208,931.53, 288,327.60 and 113,439.01

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Solution

The fourth proportional to 208,931.53, 288,327.60 and 113,439.01 is: 156,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,931.53 : 288,327.60 = 113,439.01 : x
  2. Step 2: Convert to fraction form
    208,931.53/288,327.60 = 113,439.01/x
  3. Step 3: Cross multiply
    208,931.53x = 288,327.60 × 113,439.01
  4. Step 4: Simplify right side
    208,931.53x = 32,707,597,499.68
  5. Step 5: Solve for x
    x = 32,707,597,499.68/208,931.53
  6. Step 6: Final answer
    x = 156,546.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.