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Finding the Fourth Proportional to 228,825.87, 342,966.60 and 172,480.29

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Solution

The fourth proportional to 228,825.87, 342,966.60 and 172,480.29 is: 258,515.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,825.87 : 342,966.60 = 172,480.29 : x
  2. Step 2: Convert to fraction form
    228,825.87/342,966.60 = 172,480.29/x
  3. Step 3: Cross multiply
    228,825.87x = 342,966.60 × 172,480.29
  4. Step 4: Simplify right side
    228,825.87x = 59,154,978,628.31
  5. Step 5: Solve for x
    x = 59,154,978,628.31/228,825.87
  6. Step 6: Final answer
    x = 258,515.26

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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.