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Finding the Fourth Proportional to 288,617.93, 398,248.13 and 161,268.92

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Solution

The fourth proportional to 288,617.93, 398,248.13 and 161,268.92 is: 222,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,617.93 : 398,248.13 = 161,268.92 : x
  2. Step 2: Convert to fraction form
    288,617.93/398,248.13 = 161,268.92/x
  3. Step 3: Cross multiply
    288,617.93x = 398,248.13 × 161,268.92
  4. Step 4: Simplify right side
    288,617.93x = 64,225,043,019.53
  5. Step 5: Solve for x
    x = 64,225,043,019.53/288,617.93
  6. Step 6: Final answer
    x = 222,526.18

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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.