Home / 288,385.04-431,997.48-143,855.12

Finding the Fourth Proportional to 288,385.04, 431,997.48 and 143,855.12

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Solution

The fourth proportional to 288,385.04, 431,997.48 and 143,855.12 is: 215,493.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,385.04 : 431,997.48 = 143,855.12 : x
  2. Step 2: Convert to fraction form
    288,385.04/431,997.48 = 143,855.12/x
  3. Step 3: Cross multiply
    288,385.04x = 431,997.48 × 143,855.12
  4. Step 4: Simplify right side
    288,385.04x = 62,145,049,325.10
  5. Step 5: Solve for x
    x = 62,145,049,325.10/288,385.04
  6. Step 6: Final answer
    x = 215,493.32

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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.