Home / 356,837.36-492,390.14-203,885.45

Finding the Fourth Proportional to 356,837.36, 492,390.14 and 203,885.45

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Solution

The fourth proportional to 356,837.36, 492,390.14 and 203,885.45 is: 281,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,837.36 : 492,390.14 = 203,885.45 : x
  2. Step 2: Convert to fraction form
    356,837.36/492,390.14 = 203,885.45/x
  3. Step 3: Cross multiply
    356,837.36x = 492,390.14 × 203,885.45
  4. Step 4: Simplify right side
    356,837.36x = 100,391,183,317.23
  5. Step 5: Solve for x
    x = 100,391,183,317.23/356,837.36
  6. Step 6: Final answer
    x = 281,335.97

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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.