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Finding the Fourth Proportional to 442,881.40, 664,427.44 and 143,362.02

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Solution

The fourth proportional to 442,881.40, 664,427.44 and 143,362.02 is: 215,077.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,881.40 : 664,427.44 = 143,362.02 : x
  2. Step 2: Convert to fraction form
    442,881.40/664,427.44 = 143,362.02/x
  3. Step 3: Cross multiply
    442,881.40x = 664,427.44 × 143,362.02
  4. Step 4: Simplify right side
    442,881.40x = 95,253,659,941.83
  5. Step 5: Solve for x
    x = 95,253,659,941.83/442,881.40
  6. Step 6: Final answer
    x = 215,077.13

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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.