Home / 258,905.21-357,217.00-166,985.60

Finding the Fourth Proportional to 258,905.21, 357,217.00 and 166,985.60

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Solution

The fourth proportional to 258,905.21, 357,217.00 and 166,985.60 is: 230,393.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,905.21 : 357,217.00 = 166,985.60 : x
  2. Step 2: Convert to fraction form
    258,905.21/357,217.00 = 166,985.60/x
  3. Step 3: Cross multiply
    258,905.21x = 357,217.00 × 166,985.60
  4. Step 4: Simplify right side
    258,905.21x = 59,650,092,871.65
  5. Step 5: Solve for x
    x = 59,650,092,871.65/258,905.21
  6. Step 6: Final answer
    x = 230,393.56

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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.