Home / 320,784.20-442,652.21-191,697.06

Finding the Fourth Proportional to 320,784.20, 442,652.21 and 191,697.06

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Solution

The fourth proportional to 320,784.20, 442,652.21 and 191,697.06 is: 264,524.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,784.20 : 442,652.21 = 191,697.06 : x
  2. Step 2: Convert to fraction form
    320,784.20/442,652.21 = 191,697.06/x
  3. Step 3: Cross multiply
    320,784.20x = 442,652.21 × 191,697.06
  4. Step 4: Simplify right side
    320,784.20x = 84,855,124,087.76
  5. Step 5: Solve for x
    x = 84,855,124,087.76/320,784.20
  6. Step 6: Final answer
    x = 264,524.01

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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.