Home / 479,130.58-718,834.38-142,178.68

Finding the Fourth Proportional to 479,130.58, 718,834.38 and 142,178.68

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Solution

The fourth proportional to 479,130.58, 718,834.38 and 142,178.68 is: 213,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,130.58 : 718,834.38 = 142,178.68 : x
  2. Step 2: Convert to fraction form
    479,130.58/718,834.38 = 142,178.68/x
  3. Step 3: Cross multiply
    479,130.58x = 718,834.38 × 142,178.68
  4. Step 4: Simplify right side
    479,130.58x = 102,202,923,287.02
  5. Step 5: Solve for x
    x = 102,202,923,287.02/479,130.58
  6. Step 6: Final answer
    x = 213,309.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.