Home / 258,842.88-357,202.44-145,665.72

Finding the Fourth Proportional to 258,842.88, 357,202.44 and 145,665.72

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Solution

The fourth proportional to 258,842.88, 357,202.44 and 145,665.72 is: 201,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,842.88 : 357,202.44 = 145,665.72 : x
  2. Step 2: Convert to fraction form
    258,842.88/357,202.44 = 145,665.72/x
  3. Step 3: Cross multiply
    258,842.88x = 357,202.44 × 145,665.72
  4. Step 4: Simplify right side
    258,842.88x = 52,032,150,608.36
  5. Step 5: Solve for x
    x = 52,032,150,608.36/258,842.88
  6. Step 6: Final answer
    x = 201,018.28

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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.