Home / 381,346.89-526,257.27-209,267.75

Finding the Fourth Proportional to 381,346.89, 526,257.27 and 209,267.75

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Solution

The fourth proportional to 381,346.89, 526,257.27 and 209,267.75 is: 288,788.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,346.89 : 526,257.27 = 209,267.75 : x
  2. Step 2: Convert to fraction form
    381,346.89/526,257.27 = 209,267.75/x
  3. Step 3: Cross multiply
    381,346.89x = 526,257.27 × 209,267.75
  4. Step 4: Simplify right side
    381,346.89x = 110,128,672,182.76
  5. Step 5: Solve for x
    x = 110,128,672,182.76/381,346.89
  6. Step 6: Final answer
    x = 288,788.70

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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.