Home / 380,318.87-524,839.14-219,172.52

Finding the Fourth Proportional to 380,318.87, 524,839.14 and 219,172.52

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Solution

The fourth proportional to 380,318.87, 524,839.14 and 219,172.52 is: 302,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,318.87 : 524,839.14 = 219,172.52 : x
  2. Step 2: Convert to fraction form
    380,318.87/524,839.14 = 219,172.52/x
  3. Step 3: Cross multiply
    380,318.87x = 524,839.14 × 219,172.52
  4. Step 4: Simplify right side
    380,318.87x = 115,030,314,284.24
  5. Step 5: Solve for x
    x = 115,030,314,284.24/380,318.87
  6. Step 6: Final answer
    x = 302,457.56

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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.