Home / 352,949.46-529,528.10-128,306.36

Finding the Fourth Proportional to 352,949.46, 529,528.10 and 128,306.36

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Solution

The fourth proportional to 352,949.46, 529,528.10 and 128,306.36 is: 192,497.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,949.46 : 529,528.10 = 128,306.36 : x
  2. Step 2: Convert to fraction form
    352,949.46/529,528.10 = 128,306.36/x
  3. Step 3: Cross multiply
    352,949.46x = 529,528.10 × 128,306.36
  4. Step 4: Simplify right side
    352,949.46x = 67,941,823,028.72
  5. Step 5: Solve for x
    x = 67,941,823,028.72/352,949.46
  6. Step 6: Final answer
    x = 192,497.31

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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.