Home / 208,931.64-288,325.64-113,438.36

Finding the Fourth Proportional to 208,931.64, 288,325.64 and 113,438.36

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Solution

The fourth proportional to 208,931.64, 288,325.64 and 113,438.36 is: 156,544.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,931.64 : 288,325.64 = 113,438.36 : x
  2. Step 2: Convert to fraction form
    208,931.64/288,325.64 = 113,438.36/x
  3. Step 3: Cross multiply
    208,931.64x = 288,325.64 × 113,438.36
  4. Step 4: Simplify right side
    208,931.64x = 32,707,187,747.55
  5. Step 5: Solve for x
    x = 32,707,187,747.55/208,931.64
  6. Step 6: Final answer
    x = 156,544.92

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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.