Home / 209,516.57-288,931.86-140,761.37

Finding the Fourth Proportional to 209,516.57, 288,931.86 and 140,761.37

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Solution

The fourth proportional to 209,516.57, 288,931.86 and 140,761.37 is: 194,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,516.57 : 288,931.86 = 140,761.37 : x
  2. Step 2: Convert to fraction form
    209,516.57/288,931.86 = 140,761.37/x
  3. Step 3: Cross multiply
    209,516.57x = 288,931.86 × 140,761.37
  4. Step 4: Simplify right side
    209,516.57x = 40,670,445,172.58
  5. Step 5: Solve for x
    x = 40,670,445,172.58/209,516.57
  6. Step 6: Final answer
    x = 194,115.65

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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.