Home / 209,320.30-288,869.62-119,913.58

Finding the Fourth Proportional to 209,320.30, 288,869.62 and 119,913.58

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Solution

The fourth proportional to 209,320.30, 288,869.62 and 119,913.58 is: 165,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,320.30 : 288,869.62 = 119,913.58 : x
  2. Step 2: Convert to fraction form
    209,320.30/288,869.62 = 119,913.58/x
  3. Step 3: Cross multiply
    209,320.30x = 288,869.62 × 119,913.58
  4. Step 4: Simplify right side
    209,320.30x = 34,639,390,287.44
  5. Step 5: Solve for x
    x = 34,639,390,287.44/209,320.30
  6. Step 6: Final answer
    x = 165,485.10

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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.