Home / 369,187.25-509,478.61-199,421.38

Finding the Fourth Proportional to 369,187.25, 509,478.61 and 199,421.38

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Solution

The fourth proportional to 369,187.25, 509,478.61 and 199,421.38 is: 275,201.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,187.25 : 509,478.61 = 199,421.38 : x
  2. Step 2: Convert to fraction form
    369,187.25/509,478.61 = 199,421.38/x
  3. Step 3: Cross multiply
    369,187.25x = 509,478.61 × 199,421.38
  4. Step 4: Simplify right side
    369,187.25x = 101,600,927,486.68
  5. Step 5: Solve for x
    x = 101,600,927,486.68/369,187.25
  6. Step 6: Final answer
    x = 275,201.62

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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.