Home / 319,490.02-441,041.05-203,251.28

Finding the Fourth Proportional to 319,490.02, 441,041.05 and 203,251.28

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Solution

The fourth proportional to 319,490.02, 441,041.05 and 203,251.28 is: 280,578.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,490.02 : 441,041.05 = 203,251.28 : x
  2. Step 2: Convert to fraction form
    319,490.02/441,041.05 = 203,251.28/x
  3. Step 3: Cross multiply
    319,490.02x = 441,041.05 × 203,251.28
  4. Step 4: Simplify right side
    319,490.02x = 89,642,155,993.90
  5. Step 5: Solve for x
    x = 89,642,155,993.90/319,490.02
  6. Step 6: Final answer
    x = 280,578.89

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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.