Home / 209,255.96-288,775.05-113,762.72

Finding the Fourth Proportional to 209,255.96, 288,775.05 and 113,762.72

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Solution

The fourth proportional to 209,255.96, 288,775.05 and 113,762.72 is: 156,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,255.96 : 288,775.05 = 113,762.72 : x
  2. Step 2: Convert to fraction form
    209,255.96/288,775.05 = 113,762.72/x
  3. Step 3: Cross multiply
    209,255.96x = 288,775.05 × 113,762.72
  4. Step 4: Simplify right side
    209,255.96x = 32,851,835,156.14
  5. Step 5: Solve for x
    x = 32,851,835,156.14/209,255.96
  6. Step 6: Final answer
    x = 156,993.55

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1.5x scale

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.