Home / 209,222.90-288,724.20-113,732

Finding the Fourth Proportional to 209,222.90, 288,724.20 and 113,732

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Solution

The fourth proportional to 209,222.90, 288,724.20 and 113,732 is: 156,948.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,222.90 : 288,724.20 = 113,732 : x
  2. Step 2: Convert to fraction form
    209,222.90/288,724.20 = 113,732/x
  3. Step 3: Cross multiply
    209,222.90x = 288,724.20 × 113,732
  4. Step 4: Simplify right side
    209,222.90x = 32,837,180,714.40
  5. Step 5: Solve for x
    x = 32,837,180,714.40/209,222.90
  6. Step 6: Final answer
    x = 156,948.31

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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.