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Finding the Fourth Proportional to 300,842.45, 451,113.43 and 98,412.14

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Solution

The fourth proportional to 300,842.45, 451,113.43 and 98,412.14 is: 147,569.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,842.45 : 451,113.43 = 98,412.14 : x
  2. Step 2: Convert to fraction form
    300,842.45/451,113.43 = 98,412.14/x
  3. Step 3: Cross multiply
    300,842.45x = 451,113.43 × 98,412.14
  4. Step 4: Simplify right side
    300,842.45x = 44,395,038,029.04
  5. Step 5: Solve for x
    x = 44,395,038,029.04/300,842.45
  6. Step 6: Final answer
    x = 147,569.06

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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.