Home / 258,349.50-356,555.72-145,172.25

Finding the Fourth Proportional to 258,349.50, 356,555.72 and 145,172.25

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Solution

The fourth proportional to 258,349.50, 356,555.72 and 145,172.25 is: 200,356.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,349.50 : 356,555.72 = 145,172.25 : x
  2. Step 2: Convert to fraction form
    258,349.50/356,555.72 = 145,172.25/x
  3. Step 3: Cross multiply
    258,349.50x = 356,555.72 × 145,172.25
  4. Step 4: Simplify right side
    258,349.50x = 51,761,996,485.70
  5. Step 5: Solve for x
    x = 51,761,996,485.70/258,349.50
  6. Step 6: Final answer
    x = 200,356.48

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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.