Home / 456,712.90-685,004.55-141,201.70

Finding the Fourth Proportional to 456,712.90, 685,004.55 and 141,201.70

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Solution

The fourth proportional to 456,712.90, 685,004.55 and 141,201.70 is: 211,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,712.90 : 685,004.55 = 141,201.70 : x
  2. Step 2: Convert to fraction form
    456,712.90/685,004.55 = 141,201.70/x
  3. Step 3: Cross multiply
    456,712.90x = 685,004.55 × 141,201.70
  4. Step 4: Simplify right side
    456,712.90x = 96,723,806,967.74
  5. Step 5: Solve for x
    x = 96,723,806,967.74/456,712.90
  6. Step 6: Final answer
    x = 211,782.52

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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.