Home / 258,016.72-356,071.90-143,297.16

Finding the Fourth Proportional to 258,016.72, 356,071.90 and 143,297.16

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Solution

The fourth proportional to 258,016.72, 356,071.90 and 143,297.16 is: 197,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,016.72 : 356,071.90 = 143,297.16 : x
  2. Step 2: Convert to fraction form
    258,016.72/356,071.90 = 143,297.16/x
  3. Step 3: Cross multiply
    258,016.72x = 356,071.90 × 143,297.16
  4. Step 4: Simplify right side
    258,016.72x = 51,024,092,025.80
  5. Step 5: Solve for x
    x = 51,024,092,025.80/258,016.72
  6. Step 6: Final answer
    x = 197,754.98

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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.