Home / 209,311.87-288,841.59-118,673.93

Finding the Fourth Proportional to 209,311.87, 288,841.59 and 118,673.93

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Solution

The fourth proportional to 209,311.87, 288,841.59 and 118,673.93 is: 163,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,311.87 : 288,841.59 = 118,673.93 : x
  2. Step 2: Convert to fraction form
    209,311.87/288,841.59 = 118,673.93/x
  3. Step 3: Cross multiply
    209,311.87x = 288,841.59 × 118,673.93
  4. Step 4: Simplify right side
    209,311.87x = 34,277,967,651.54
  5. Step 5: Solve for x
    x = 34,277,967,651.54/209,311.87
  6. Step 6: Final answer
    x = 163,765.04

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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.