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Finding the Fourth Proportional to 209,314.62, 288,845.40 and 118,676.67

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Solution

The fourth proportional to 209,314.62, 288,845.40 and 118,676.67 is: 163,768.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,314.62 : 288,845.40 = 118,676.67 : x
  2. Step 2: Convert to fraction form
    209,314.62/288,845.40 = 118,676.67/x
  3. Step 3: Cross multiply
    209,314.62x = 288,845.40 × 118,676.67
  4. Step 4: Simplify right side
    209,314.62x = 34,279,210,216.82
  5. Step 5: Solve for x
    x = 34,279,210,216.82/209,314.62
  6. Step 6: Final answer
    x = 163,768.83

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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.