Home / 325,128.78-487,734.69-125,506.23

Finding the Fourth Proportional to 325,128.78, 487,734.69 and 125,506.23

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Solution

The fourth proportional to 325,128.78, 487,734.69 and 125,506.23 is: 188,275.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,128.78 : 487,734.69 = 125,506.23 : x
  2. Step 2: Convert to fraction form
    325,128.78/487,734.69 = 125,506.23/x
  3. Step 3: Cross multiply
    325,128.78x = 487,734.69 × 125,506.23
  4. Step 4: Simplify right side
    325,128.78x = 61,213,742,182.12
  5. Step 5: Solve for x
    x = 61,213,742,182.12/325,128.78
  6. Step 6: Final answer
    x = 188,275.37

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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.