Home / 352,020.80-528,031.20-331,284.80

Finding the Fourth Proportional to 352,020.80, 528,031.20 and 331,284.80

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Solution

The fourth proportional to 352,020.80, 528,031.20 and 331,284.80 is: 496,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,020.80 : 528,031.20 = 331,284.80 : x
  2. Step 2: Convert to fraction form
    352,020.80/528,031.20 = 331,284.80/x
  3. Step 3: Cross multiply
    352,020.80x = 528,031.20 × 331,284.80
  4. Step 4: Simplify right side
    352,020.80x = 174,928,710,485.76
  5. Step 5: Solve for x
    x = 174,928,710,485.76/352,020.80
  6. Step 6: Final answer
    x = 496,927.20

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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.