Home / 258,961.68-357,373.80-145,788.48

Finding the Fourth Proportional to 258,961.68, 357,373.80 and 145,788.48

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Solution

The fourth proportional to 258,961.68, 357,373.80 and 145,788.48 is: 201,191.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,961.68 : 357,373.80 = 145,788.48 : x
  2. Step 2: Convert to fraction form
    258,961.68/357,373.80 = 145,788.48/x
  3. Step 3: Cross multiply
    258,961.68x = 357,373.80 × 145,788.48
  4. Step 4: Simplify right side
    258,961.68x = 52,100,983,093.82
  5. Step 5: Solve for x
    x = 52,100,983,093.82/258,961.68
  6. Step 6: Final answer
    x = 201,191.86

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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.