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Finding the Fourth Proportional to 290,401.83, 400,580.87 and 182,785.05

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Solution

The fourth proportional to 290,401.83, 400,580.87 and 182,785.05 is: 252,134.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,401.83 : 400,580.87 = 182,785.05 : x
  2. Step 2: Convert to fraction form
    290,401.83/400,580.87 = 182,785.05/x
  3. Step 3: Cross multiply
    290,401.83x = 400,580.87 × 182,785.05
  4. Step 4: Simplify right side
    290,401.83x = 73,220,193,438.07
  5. Step 5: Solve for x
    x = 73,220,193,438.07/290,401.83
  6. Step 6: Final answer
    x = 252,134.06

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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.