Home / 437,162.45-656,022.73-212,400.35

Finding the Fourth Proportional to 437,162.45, 656,022.73 and 212,400.35

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Solution

The fourth proportional to 437,162.45, 656,022.73 and 212,400.35 is: 318,736.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,162.45 : 656,022.73 = 212,400.35 : x
  2. Step 2: Convert to fraction form
    437,162.45/656,022.73 = 212,400.35/x
  3. Step 3: Cross multiply
    437,162.45x = 656,022.73 × 212,400.35
  4. Step 4: Simplify right side
    437,162.45x = 139,339,453,648.84
  5. Step 5: Solve for x
    x = 139,339,453,648.84/437,162.45
  6. Step 6: Final answer
    x = 318,736.10

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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.