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Finding the Fourth Proportional to 369,525.40, 509,945.80 and 199,759.52

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Solution

The fourth proportional to 369,525.40, 509,945.80 and 199,759.52 is: 275,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,525.40 : 509,945.80 = 199,759.52 : x
  2. Step 2: Convert to fraction form
    369,525.40/509,945.80 = 199,759.52/x
  3. Step 3: Cross multiply
    369,525.40x = 509,945.80 × 199,759.52
  4. Step 4: Simplify right side
    369,525.40x = 101,866,528,234.02
  5. Step 5: Solve for x
    x = 101,866,528,234.02/369,525.40
  6. Step 6: Final answer
    x = 275,668.54

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1.5x scale

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.