Home / 289,475.62-434,255.28-109,512.25

Finding the Fourth Proportional to 289,475.62, 434,255.28 and 109,512.25

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Solution

The fourth proportional to 289,475.62, 434,255.28 and 109,512.25 is: 164,284.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,475.62 : 434,255.28 = 109,512.25 : x
  2. Step 2: Convert to fraction form
    289,475.62/434,255.28 = 109,512.25/x
  3. Step 3: Cross multiply
    289,475.62x = 434,255.28 × 109,512.25
  4. Step 4: Simplify right side
    289,475.62x = 47,556,272,787.18
  5. Step 5: Solve for x
    x = 47,556,272,787.18/289,475.62
  6. Step 6: Final answer
    x = 164,284.21

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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.