Home / 289,185.22-433,765.05-78,823.18

Finding the Fourth Proportional to 289,185.22, 433,765.05 and 78,823.18

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Solution

The fourth proportional to 289,185.22, 433,765.05 and 78,823.18 is: 118,231.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,185.22 : 433,765.05 = 78,823.18 : x
  2. Step 2: Convert to fraction form
    289,185.22/433,765.05 = 78,823.18/x
  3. Step 3: Cross multiply
    289,185.22x = 433,765.05 × 78,823.18
  4. Step 4: Simplify right side
    289,185.22x = 34,190,740,613.86
  5. Step 5: Solve for x
    x = 34,190,740,613.86/289,185.22
  6. Step 6: Final answer
    x = 118,231.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.