Home / 258,834.55-357,190.95-145,657.30

Finding the Fourth Proportional to 258,834.55, 357,190.95 and 145,657.30

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Solution

The fourth proportional to 258,834.55, 357,190.95 and 145,657.30 is: 201,006.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,834.55 : 357,190.95 = 145,657.30 : x
  2. Step 2: Convert to fraction form
    258,834.55/357,190.95 = 145,657.30/x
  3. Step 3: Cross multiply
    258,834.55x = 357,190.95 × 145,657.30
  4. Step 4: Simplify right side
    258,834.55x = 52,027,469,361.44
  5. Step 5: Solve for x
    x = 52,027,469,361.44/258,834.55
  6. Step 6: Final answer
    x = 201,006.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.