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Finding the Fourth Proportional to 300,802.92, 451,261.31 and 120,902.34

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Solution

The fourth proportional to 300,802.92, 451,261.31 and 120,902.34 is: 181,376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,802.92 : 451,261.31 = 120,902.34 : x
  2. Step 2: Convert to fraction form
    300,802.92/451,261.31 = 120,902.34/x
  3. Step 3: Cross multiply
    300,802.92x = 451,261.31 × 120,902.34
  4. Step 4: Simplify right side
    300,802.92x = 54,558,547,725.95
  5. Step 5: Solve for x
    x = 54,558,547,725.95/300,802.92
  6. Step 6: Final answer
    x = 181,376.39

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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.