Home / 258,330.21-356,484.54-143,608.59

Finding the Fourth Proportional to 258,330.21, 356,484.54 and 143,608.59

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Solution

The fourth proportional to 258,330.21, 356,484.54 and 143,608.59 is: 198,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,330.21 : 356,484.54 = 143,608.59 : x
  2. Step 2: Convert to fraction form
    258,330.21/356,484.54 = 143,608.59/x
  3. Step 3: Cross multiply
    258,330.21x = 356,484.54 × 143,608.59
  4. Step 4: Simplify right side
    258,330.21x = 51,194,242,146.20
  5. Step 5: Solve for x
    x = 51,194,242,146.20/258,330.21
  6. Step 6: Final answer
    x = 198,173.66

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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.