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Finding the Fourth Proportional to 288,400.02, 397,989.77 and 167,612.01

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Solution

The fourth proportional to 288,400.02, 397,989.77 and 167,612.01 is: 231,303.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,400.02 : 397,989.77 = 167,612.01 : x
  2. Step 2: Convert to fraction form
    288,400.02/397,989.77 = 167,612.01/x
  3. Step 3: Cross multiply
    288,400.02x = 397,989.77 × 167,612.01
  4. Step 4: Simplify right side
    288,400.02x = 66,707,864,471.08
  5. Step 5: Solve for x
    x = 66,707,864,471.08/288,400.02
  6. Step 6: Final answer
    x = 231,303.26

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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.