Home / 258,045.25-356,090.26-143,331.28

Finding the Fourth Proportional to 258,045.25, 356,090.26 and 143,331.28

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Solution

The fourth proportional to 258,045.25, 356,090.26 and 143,331.28 is: 197,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,045.25 : 356,090.26 = 143,331.28 : x
  2. Step 2: Convert to fraction form
    258,045.25/356,090.26 = 143,331.28/x
  3. Step 3: Cross multiply
    258,045.25x = 356,090.26 × 143,331.28
  4. Step 4: Simplify right side
    258,045.25x = 51,038,872,761.33
  5. Step 5: Solve for x
    x = 51,038,872,761.33/258,045.25
  6. Step 6: Final answer
    x = 197,790.40

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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.