Home / 315,216.20-434,997.74-171,976.34

Finding the Fourth Proportional to 315,216.20, 434,997.74 and 171,976.34

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Solution

The fourth proportional to 315,216.20, 434,997.74 and 171,976.34 is: 237,327.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,216.20 : 434,997.74 = 171,976.34 : x
  2. Step 2: Convert to fraction form
    315,216.20/434,997.74 = 171,976.34/x
  3. Step 3: Cross multiply
    315,216.20x = 434,997.74 × 171,976.34
  4. Step 4: Simplify right side
    315,216.20x = 74,809,319,233.47
  5. Step 5: Solve for x
    x = 74,809,319,233.47/315,216.20
  6. Step 6: Final answer
    x = 237,327.01

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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.