Home / 355,121.80-532,985.10-144,910.60

Finding the Fourth Proportional to 355,121.80, 532,985.10 and 144,910.60

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Solution

The fourth proportional to 355,121.80, 532,985.10 and 144,910.60 is: 217,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,121.80 : 532,985.10 = 144,910.60 : x
  2. Step 2: Convert to fraction form
    355,121.80/532,985.10 = 144,910.60/x
  3. Step 3: Cross multiply
    355,121.80x = 532,985.10 × 144,910.60
  4. Step 4: Simplify right side
    355,121.80x = 77,235,190,632.06
  5. Step 5: Solve for x
    x = 77,235,190,632.06/355,121.80
  6. Step 6: Final answer
    x = 217,489.30

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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.