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Finding the Fourth Proportional to 289,905.35, 434,858.03 and 289,905.35

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Solution

The fourth proportional to 289,905.35, 434,858.03 and 289,905.35 is: 434,858.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,905.35 : 434,858.03 = 289,905.35 : x
  2. Step 2: Convert to fraction form
    289,905.35/434,858.03 = 289,905.35/x
  3. Step 3: Cross multiply
    289,905.35x = 434,858.03 × 289,905.35
  4. Step 4: Simplify right side
    289,905.35x = 126,067,667,937.93
  5. Step 5: Solve for x
    x = 126,067,667,937.93/289,905.35
  6. Step 6: Final answer
    x = 434,858.03

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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.