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Finding the Fourth Proportional to 288,726.02, 398,454.27 and 161,401.58

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Solution

The fourth proportional to 288,726.02, 398,454.27 and 161,401.58 is: 222,741.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,726.02 : 398,454.27 = 161,401.58 : x
  2. Step 2: Convert to fraction form
    288,726.02/398,454.27 = 161,401.58/x
  3. Step 3: Cross multiply
    288,726.02x = 398,454.27 × 161,401.58
  4. Step 4: Simplify right side
    288,726.02x = 64,311,148,735.75
  5. Step 5: Solve for x
    x = 64,311,148,735.75/288,726.02
  6. Step 6: Final answer
    x = 222,741.09

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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.