Home / 369,074.09-509,322.24-199,308.21

Finding the Fourth Proportional to 369,074.09, 509,322.24 and 199,308.21

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Solution

The fourth proportional to 369,074.09, 509,322.24 and 199,308.21 is: 275,045.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,074.09 : 509,322.24 = 199,308.21 : x
  2. Step 2: Convert to fraction form
    369,074.09/509,322.24 = 199,308.21/x
  3. Step 3: Cross multiply
    369,074.09x = 509,322.24 × 199,308.21
  4. Step 4: Simplify right side
    369,074.09x = 101,512,103,967.59
  5. Step 5: Solve for x
    x = 101,512,103,967.59/369,074.09
  6. Step 6: Final answer
    x = 275,045.33

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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.