Home / 258,869.89-357,103.44-178,157.29

Finding the Fourth Proportional to 258,869.89, 357,103.44 and 178,157.29

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Solution

The fourth proportional to 258,869.89, 357,103.44 and 178,157.29 is: 245,762.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,869.89 : 357,103.44 = 178,157.29 : x
  2. Step 2: Convert to fraction form
    258,869.89/357,103.44 = 178,157.29/x
  3. Step 3: Cross multiply
    258,869.89x = 357,103.44 × 178,157.29
  4. Step 4: Simplify right side
    258,869.89x = 63,620,581,775.42
  5. Step 5: Solve for x
    x = 63,620,581,775.42/258,869.89
  6. Step 6: Final answer
    x = 245,762.77

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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.