Home / 218,942.73-302,140.80-118,340.73

Finding the Fourth Proportional to 218,942.73, 302,140.80 and 118,340.73

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Solution

The fourth proportional to 218,942.73, 302,140.80 and 118,340.73 is: 163,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,942.73 : 302,140.80 = 118,340.73 : x
  2. Step 2: Convert to fraction form
    218,942.73/302,140.80 = 118,340.73/x
  3. Step 3: Cross multiply
    218,942.73x = 302,140.80 × 118,340.73
  4. Step 4: Simplify right side
    218,942.73x = 35,755,562,834.78
  5. Step 5: Solve for x
    x = 35,755,562,834.78/218,942.73
  6. Step 6: Final answer
    x = 163,310.12

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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.