Home / 209,221.41-288,738.95-117,349.32

Finding the Fourth Proportional to 209,221.41, 288,738.95 and 117,349.32

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Solution

The fourth proportional to 209,221.41, 288,738.95 and 117,349.32 is: 161,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,221.41 : 288,738.95 = 117,349.32 : x
  2. Step 2: Convert to fraction form
    209,221.41/288,738.95 = 117,349.32/x
  3. Step 3: Cross multiply
    209,221.41x = 288,738.95 × 117,349.32
  4. Step 4: Simplify right side
    209,221.41x = 33,883,318,289.69
  5. Step 5: Solve for x
    x = 33,883,318,289.69/209,221.41
  6. Step 6: Final answer
    x = 161,949.58

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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.