Home / 380,395.56-524,945.86-210,629.64

Finding the Fourth Proportional to 380,395.56, 524,945.86 and 210,629.64

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Solution

The fourth proportional to 380,395.56, 524,945.86 and 210,629.64 is: 290,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,395.56 : 524,945.86 = 210,629.64 : x
  2. Step 2: Convert to fraction form
    380,395.56/524,945.86 = 210,629.64/x
  3. Step 3: Cross multiply
    380,395.56x = 524,945.86 × 210,629.64
  4. Step 4: Simplify right side
    380,395.56x = 110,569,157,511.29
  5. Step 5: Solve for x
    x = 110,569,157,511.29/380,395.56
  6. Step 6: Final answer
    x = 290,668.90

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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.