Home / 309,826.62-426,764.16-219,026.43

Finding the Fourth Proportional to 309,826.62, 426,764.16 and 219,026.43

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Solution

The fourth proportional to 309,826.62, 426,764.16 and 219,026.43 is: 301,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,826.62 : 426,764.16 = 219,026.43 : x
  2. Step 2: Convert to fraction form
    309,826.62/426,764.16 = 219,026.43/x
  3. Step 3: Cross multiply
    309,826.62x = 426,764.16 × 219,026.43
  4. Step 4: Simplify right side
    309,826.62x = 93,472,630,416.75
  5. Step 5: Solve for x
    x = 93,472,630,416.75/309,826.62
  6. Step 6: Final answer
    x = 301,693.35

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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.