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Finding the Fourth Proportional to 281,772.18, 422,682.34 and 155,499.59

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Solution

The fourth proportional to 281,772.18, 422,682.34 and 155,499.59 is: 233,262.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,772.18 : 422,682.34 = 155,499.59 : x
  2. Step 2: Convert to fraction form
    281,772.18/422,682.34 = 155,499.59/x
  3. Step 3: Cross multiply
    281,772.18x = 422,682.34 × 155,499.59
  4. Step 4: Simplify right side
    281,772.18x = 65,726,928,068.08
  5. Step 5: Solve for x
    x = 65,726,928,068.08/281,772.18
  6. Step 6: Final answer
    x = 233,262.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.