Home / 421,249.32-581,296.50-239,934.60

Finding the Fourth Proportional to 421,249.32, 581,296.50 and 239,934.60

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Solution

The fourth proportional to 421,249.32, 581,296.50 and 239,934.60 is: 331,094.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,249.32 : 581,296.50 = 239,934.60 : x
  2. Step 2: Convert to fraction form
    421,249.32/581,296.50 = 239,934.60/x
  3. Step 3: Cross multiply
    421,249.32x = 581,296.50 × 239,934.60
  4. Step 4: Simplify right side
    421,249.32x = 139,473,143,208.90
  5. Step 5: Solve for x
    x = 139,473,143,208.90/421,249.32
  6. Step 6: Final answer
    x = 331,094.05

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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.