Home / 209,265.18-288,784.52-113,771.86

Finding the Fourth Proportional to 209,265.18, 288,784.52 and 113,771.86

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Solution

The fourth proportional to 209,265.18, 288,784.52 and 113,771.86 is: 157,004.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,265.18 : 288,784.52 = 113,771.86 : x
  2. Step 2: Convert to fraction form
    209,265.18/288,784.52 = 113,771.86/x
  3. Step 3: Cross multiply
    209,265.18x = 288,784.52 × 113,771.86
  4. Step 4: Simplify right side
    209,265.18x = 32,855,551,979.61
  5. Step 5: Solve for x
    x = 32,855,551,979.61/209,265.18
  6. Step 6: Final answer
    x = 157,004.39

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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.