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Finding the Fourth Proportional to 171,489.10, 256,504.65 and 153,847.30

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Solution

The fourth proportional to 171,489.10, 256,504.65 and 153,847.30 is: 230,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,489.10 : 256,504.65 = 153,847.30 : x
  2. Step 2: Convert to fraction form
    171,489.10/256,504.65 = 153,847.30/x
  3. Step 3: Cross multiply
    171,489.10x = 256,504.65 × 153,847.30
  4. Step 4: Simplify right side
    171,489.10x = 39,462,547,839.95
  5. Step 5: Solve for x
    x = 39,462,547,839.95/171,489.10
  6. Step 6: Final answer
    x = 230,116.95

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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.