Home / 209,206.37-288,705.20-113,712.84

Finding the Fourth Proportional to 209,206.37, 288,705.20 and 113,712.84

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Solution

The fourth proportional to 209,206.37, 288,705.20 and 113,712.84 is: 156,923.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,206.37 : 288,705.20 = 113,712.84 : x
  2. Step 2: Convert to fraction form
    209,206.37/288,705.20 = 113,712.84/x
  3. Step 3: Cross multiply
    209,206.37x = 288,705.20 × 113,712.84
  4. Step 4: Simplify right side
    209,206.37x = 32,829,488,214.77
  5. Step 5: Solve for x
    x = 32,829,488,214.77/209,206.37
  6. Step 6: Final answer
    x = 156,923.94

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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.