Home / 287,692.06-397,185.15-255,772.64

Finding the Fourth Proportional to 287,692.06, 397,185.15 and 255,772.64

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Solution

The fourth proportional to 287,692.06, 397,185.15 and 255,772.64 is: 353,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,692.06 : 397,185.15 = 255,772.64 : x
  2. Step 2: Convert to fraction form
    287,692.06/397,185.15 = 255,772.64/x
  3. Step 3: Cross multiply
    287,692.06x = 397,185.15 × 255,772.64
  4. Step 4: Simplify right side
    287,692.06x = 101,589,093,105.43
  5. Step 5: Solve for x
    x = 101,589,093,105.43/287,692.06
  6. Step 6: Final answer
    x = 353,117.48

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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.