Home / 470,155.24-705,228-115,171.12

Finding the Fourth Proportional to 470,155.24, 705,228 and 115,171.12

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Solution

The fourth proportional to 470,155.24, 705,228 and 115,171.12 is: 172,755.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,155.24 : 705,228 = 115,171.12 : x
  2. Step 2: Convert to fraction form
    470,155.24/705,228 = 115,171.12/x
  3. Step 3: Cross multiply
    470,155.24x = 705,228 × 115,171.12
  4. Step 4: Simplify right side
    470,155.24x = 81,221,898,615.36
  5. Step 5: Solve for x
    x = 81,221,898,615.36/470,155.24
  6. Step 6: Final answer
    x = 172,755.49

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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.