Home / 258,045.50-356,090.60-143,331.53

Finding the Fourth Proportional to 258,045.50, 356,090.60 and 143,331.53

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Solution

The fourth proportional to 258,045.50, 356,090.60 and 143,331.53 is: 197,790.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,045.50 : 356,090.60 = 143,331.53 : x
  2. Step 2: Convert to fraction form
    258,045.50/356,090.60 = 143,331.53/x
  3. Step 3: Cross multiply
    258,045.50x = 356,090.60 × 143,331.53
  4. Step 4: Simplify right side
    258,045.50x = 51,039,009,094.49
  5. Step 5: Solve for x
    x = 51,039,009,094.49/258,045.50
  6. Step 6: Final answer
    x = 197,790.73

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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.