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Finding the Fourth Proportional to 289,902.10, 434,853.15 and 289,902.10

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Solution

The fourth proportional to 289,902.10, 434,853.15 and 289,902.10 is: 434,853.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,902.10 : 434,853.15 = 289,902.10 : x
  2. Step 2: Convert to fraction form
    289,902.10/434,853.15 = 289,902.10/x
  3. Step 3: Cross multiply
    289,902.10x = 434,853.15 × 289,902.10
  4. Step 4: Simplify right side
    289,902.10x = 126,064,841,376.62
  5. Step 5: Solve for x
    x = 126,064,841,376.62/289,902.10
  6. Step 6: Final answer
    x = 434,853.15

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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.