Home / 258,795.50-357,143.26-145,618.25

Finding the Fourth Proportional to 258,795.50, 357,143.26 and 145,618.25

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Solution

The fourth proportional to 258,795.50, 357,143.26 and 145,618.25 is: 200,956.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,795.50 : 357,143.26 = 145,618.25 : x
  2. Step 2: Convert to fraction form
    258,795.50/357,143.26 = 145,618.25/x
  3. Step 3: Cross multiply
    258,795.50x = 357,143.26 × 145,618.25
  4. Step 4: Simplify right side
    258,795.50x = 52,006,576,520.50
  5. Step 5: Solve for x
    x = 52,006,576,520.50/258,795.50
  6. Step 6: Final answer
    x = 200,956.26

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1.5x scale

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.