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Finding the Fourth Proportional to 288,400.52, 397,990.46 and 167,612.51

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Solution

The fourth proportional to 288,400.52, 397,990.46 and 167,612.51 is: 231,303.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,400.52 : 397,990.46 = 167,612.51 : x
  2. Step 2: Convert to fraction form
    288,400.52/397,990.46 = 167,612.51/x
  3. Step 3: Cross multiply
    288,400.52x = 397,990.46 × 167,612.51
  4. Step 4: Simplify right side
    288,400.52x = 66,708,179,118.59
  5. Step 5: Solve for x
    x = 66,708,179,118.59/288,400.52
  6. Step 6: Final answer
    x = 231,303.95

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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.