Home / 421,216.20-581,197.72-239,924.16

Finding the Fourth Proportional to 421,216.20, 581,197.72 and 239,924.16

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Solution

The fourth proportional to 421,216.20, 581,197.72 and 239,924.16 is: 331,049.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,216.20 : 581,197.72 = 239,924.16 : x
  2. Step 2: Convert to fraction form
    421,216.20/581,197.72 = 239,924.16/x
  3. Step 3: Cross multiply
    421,216.20x = 581,197.72 × 239,924.16
  4. Step 4: Simplify right side
    421,216.20x = 139,443,374,764.92
  5. Step 5: Solve for x
    x = 139,443,374,764.92/421,216.20
  6. Step 6: Final answer
    x = 331,049.41

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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.