Home / 356,331.12-491,710.28-203,365.05

Finding the Fourth Proportional to 356,331.12, 491,710.28 and 203,365.05

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Solution

The fourth proportional to 356,331.12, 491,710.28 and 203,365.05 is: 280,628.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,331.12 : 491,710.28 = 203,365.05 : x
  2. Step 2: Convert to fraction form
    356,331.12/491,710.28 = 203,365.05/x
  3. Step 3: Cross multiply
    356,331.12x = 491,710.28 × 203,365.05
  4. Step 4: Simplify right side
    356,331.12x = 99,996,684,660.89
  5. Step 5: Solve for x
    x = 99,996,684,660.89/356,331.12
  6. Step 6: Final answer
    x = 280,628.55

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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.