Home / 356,290.03-491,688.21-203,325.18

Finding the Fourth Proportional to 356,290.03, 491,688.21 and 203,325.18

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Solution

The fourth proportional to 356,290.03, 491,688.21 and 203,325.18 is: 280,593.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,290.03 : 491,688.21 = 203,325.18 : x
  2. Step 2: Convert to fraction form
    356,290.03/491,688.21 = 203,325.18/x
  3. Step 3: Cross multiply
    356,290.03x = 491,688.21 × 203,325.18
  4. Step 4: Simplify right side
    356,290.03x = 99,972,590,327.06
  5. Step 5: Solve for x
    x = 99,972,590,327.06/356,290.03
  6. Step 6: Final answer
    x = 280,593.29

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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.