Home / 312,726.20-431,550.56-169,483.17

Finding the Fourth Proportional to 312,726.20, 431,550.56 and 169,483.17

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Solution

The fourth proportional to 312,726.20, 431,550.56 and 169,483.17 is: 233,880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,726.20 : 431,550.56 = 169,483.17 : x
  2. Step 2: Convert to fraction form
    312,726.20/431,550.56 = 169,483.17/x
  3. Step 3: Cross multiply
    312,726.20x = 431,550.56 × 169,483.17
  4. Step 4: Simplify right side
    312,726.20x = 73,140,556,076.66
  5. Step 5: Solve for x
    x = 73,140,556,076.66/312,726.20
  6. Step 6: Final answer
    x = 233,880.49

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1.5x scale

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.