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Finding the Fourth Proportional to 290,688.84, 436,872.52 and 270,507.39

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Solution

The fourth proportional to 290,688.84, 436,872.52 and 270,507.39 is: 406,542.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,688.84 : 436,872.52 = 270,507.39 : x
  2. Step 2: Convert to fraction form
    290,688.84/436,872.52 = 270,507.39/x
  3. Step 3: Cross multiply
    290,688.84x = 436,872.52 × 270,507.39
  4. Step 4: Simplify right side
    290,688.84x = 118,177,245,147.92
  5. Step 5: Solve for x
    x = 118,177,245,147.92/290,688.84
  6. Step 6: Final answer
    x = 406,542.08

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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.