Home / 470,150.48-648,790.89-255,286.10

Finding the Fourth Proportional to 470,150.48, 648,790.89 and 255,286.10

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Solution

The fourth proportional to 470,150.48, 648,790.89 and 255,286.10 is: 352,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,150.48 : 648,790.89 = 255,286.10 : x
  2. Step 2: Convert to fraction form
    470,150.48/648,790.89 = 255,286.10/x
  3. Step 3: Cross multiply
    470,150.48x = 648,790.89 × 255,286.10
  4. Step 4: Simplify right side
    470,150.48x = 165,627,296,023.63
  5. Step 5: Solve for x
    x = 165,627,296,023.63/470,150.48
  6. Step 6: Final answer
    x = 352,285.71

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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.