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Finding the Fourth Proportional to 289,173.32, 433,780.26 and 89,467.42

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Solution

The fourth proportional to 289,173.32, 433,780.26 and 89,467.42 is: 134,207.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,173.32 : 433,780.26 = 89,467.42 : x
  2. Step 2: Convert to fraction form
    289,173.32/433,780.26 = 89,467.42/x
  3. Step 3: Cross multiply
    289,173.32x = 433,780.26 × 89,467.42
  4. Step 4: Simplify right side
    289,173.32x = 38,809,200,709.13
  5. Step 5: Solve for x
    x = 38,809,200,709.13/289,173.32
  6. Step 6: Final answer
    x = 134,207.40

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1.5x scale

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.