Home / 288,855.12-433,098.03-138,796.80

Finding the Fourth Proportional to 288,855.12, 433,098.03 and 138,796.80

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Solution

The fourth proportional to 288,855.12, 433,098.03 and 138,796.80 is: 208,106.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,855.12 : 433,098.03 = 138,796.80 : x
  2. Step 2: Convert to fraction form
    288,855.12/433,098.03 = 138,796.80/x
  3. Step 3: Cross multiply
    288,855.12x = 433,098.03 × 138,796.80
  4. Step 4: Simplify right side
    288,855.12x = 60,112,620,650.30
  5. Step 5: Solve for x
    x = 60,112,620,650.30/288,855.12
  6. Step 6: Final answer
    x = 208,106.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.