Home / 209,210.16-288,709.20-113,716.56

Finding the Fourth Proportional to 209,210.16, 288,709.20 and 113,716.56

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Solution

The fourth proportional to 209,210.16, 288,709.20 and 113,716.56 is: 156,928.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,210.16 : 288,709.20 = 113,716.56 : x
  2. Step 2: Convert to fraction form
    209,210.16/288,709.20 = 113,716.56/x
  3. Step 3: Cross multiply
    209,210.16x = 288,709.20 × 113,716.56
  4. Step 4: Simplify right side
    209,210.16x = 32,831,017,064.35
  5. Step 5: Solve for x
    x = 32,831,017,064.35/209,210.16
  6. Step 6: Final answer
    x = 156,928.41

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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.