Home / 258,211.26-356,399.21-145,070.46

Finding the Fourth Proportional to 258,211.26, 356,399.21 and 145,070.46

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Solution

The fourth proportional to 258,211.26, 356,399.21 and 145,070.46 is: 200,235.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,211.26 : 356,399.21 = 145,070.46 : x
  2. Step 2: Convert to fraction form
    258,211.26/356,399.21 = 145,070.46/x
  3. Step 3: Cross multiply
    258,211.26x = 356,399.21 × 145,070.46
  4. Step 4: Simplify right side
    258,211.26x = 51,702,997,338.34
  5. Step 5: Solve for x
    x = 51,702,997,338.34/258,211.26
  6. Step 6: Final answer
    x = 200,235.25

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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.