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Finding the Fourth Proportional to 281,720.58, 388,773.54 and 160,899.72

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Solution

The fourth proportional to 281,720.58, 388,773.54 and 160,899.72 is: 222,041.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,720.58 : 388,773.54 = 160,899.72 : x
  2. Step 2: Convert to fraction form
    281,720.58/388,773.54 = 160,899.72/x
  3. Step 3: Cross multiply
    281,720.58x = 388,773.54 × 160,899.72
  4. Step 4: Simplify right side
    281,720.58x = 62,553,553,729.41
  5. Step 5: Solve for x
    x = 62,553,553,729.41/281,720.58
  6. Step 6: Final answer
    x = 222,041.12

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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.