Home / 405,569.50-608,310.43-135,667.05

Finding the Fourth Proportional to 405,569.50, 608,310.43 and 135,667.05

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Solution

The fourth proportional to 405,569.50, 608,310.43 and 135,667.05 is: 203,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,569.50 : 608,310.43 = 135,667.05 : x
  2. Step 2: Convert to fraction form
    405,569.50/608,310.43 = 135,667.05/x
  3. Step 3: Cross multiply
    405,569.50x = 608,310.43 × 135,667.05
  4. Step 4: Simplify right side
    405,569.50x = 82,527,681,522.33
  5. Step 5: Solve for x
    x = 82,527,681,522.33/405,569.50
  6. Step 6: Final answer
    x = 203,485.92

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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.