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Finding the Fourth Proportional to 306,584.79, 423,083.91 and 170,616.42

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Solution

The fourth proportional to 306,584.79, 423,083.91 and 170,616.42 is: 235,448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,584.79 : 423,083.91 = 170,616.42 : x
  2. Step 2: Convert to fraction form
    306,584.79/423,083.91 = 170,616.42/x
  3. Step 3: Cross multiply
    306,584.79x = 423,083.91 × 170,616.42
  4. Step 4: Simplify right side
    306,584.79x = 72,185,062,083.80
  5. Step 5: Solve for x
    x = 72,185,062,083.80/306,584.79
  6. Step 6: Final answer
    x = 235,448.93

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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.