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Finding the Fourth Proportional to 309,585.99, 427,247.30 and 173,627.97

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Solution

The fourth proportional to 309,585.99, 427,247.30 and 173,627.97 is: 239,617.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,585.99 : 427,247.30 = 173,627.97 : x
  2. Step 2: Convert to fraction form
    309,585.99/427,247.30 = 173,627.97/x
  3. Step 3: Cross multiply
    309,585.99x = 427,247.30 × 173,627.97
  4. Step 4: Simplify right side
    309,585.99x = 74,182,083,675.97
  5. Step 5: Solve for x
    x = 74,182,083,675.97/309,585.99
  6. Step 6: Final answer
    x = 239,617.06

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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.