Home / 266,821.44-368,210.72-145,965.12

Finding the Fourth Proportional to 266,821.44, 368,210.72 and 145,965.12

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Solution

The fourth proportional to 266,821.44, 368,210.72 and 145,965.12 is: 201,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,821.44 : 368,210.72 = 145,965.12 : x
  2. Step 2: Convert to fraction form
    266,821.44/368,210.72 = 145,965.12/x
  3. Step 3: Cross multiply
    266,821.44x = 368,210.72 × 145,965.12
  4. Step 4: Simplify right side
    266,821.44x = 53,745,921,930.09
  5. Step 5: Solve for x
    x = 53,745,921,930.09/266,821.44
  6. Step 6: Final answer
    x = 201,430.30

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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.