Home / 203,305.60-280,396.02-143,075.80

Finding the Fourth Proportional to 203,305.60, 280,396.02 and 143,075.80

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Solution

The fourth proportional to 203,305.60, 280,396.02 and 143,075.80 is: 197,327.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,305.60 : 280,396.02 = 143,075.80 : x
  2. Step 2: Convert to fraction form
    203,305.60/280,396.02 = 143,075.80/x
  3. Step 3: Cross multiply
    203,305.60x = 280,396.02 × 143,075.80
  4. Step 4: Simplify right side
    203,305.60x = 40,117,884,878.32
  5. Step 5: Solve for x
    x = 40,117,884,878.32/203,305.60
  6. Step 6: Final answer
    x = 197,327.99

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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.