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Finding the Fourth Proportional to 218,897.55, 302,056.47 and 161,568.18

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Solution

The fourth proportional to 218,897.55, 302,056.47 and 161,568.18 is: 222,947.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,897.55 : 302,056.47 = 161,568.18 : x
  2. Step 2: Convert to fraction form
    218,897.55/302,056.47 = 161,568.18/x
  3. Step 3: Cross multiply
    218,897.55x = 302,056.47 × 161,568.18
  4. Step 4: Simplify right side
    218,897.55x = 48,802,714,115.12
  5. Step 5: Solve for x
    x = 48,802,714,115.12/218,897.55
  6. Step 6: Final answer
    x = 222,947.74

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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.