Home / 258,197.12-356,345.44-145,019.88

Finding the Fourth Proportional to 258,197.12, 356,345.44 and 145,019.88

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Solution

The fourth proportional to 258,197.12, 356,345.44 and 145,019.88 is: 200,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,197.12 : 356,345.44 = 145,019.88 : x
  2. Step 2: Convert to fraction form
    258,197.12/356,345.44 = 145,019.88/x
  3. Step 3: Cross multiply
    258,197.12x = 356,345.44 × 145,019.88
  4. Step 4: Simplify right side
    258,197.12x = 51,677,172,947.35
  5. Step 5: Solve for x
    x = 51,677,172,947.35/258,197.12
  6. Step 6: Final answer
    x = 200,146.20

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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.