Home / 340,121.35-470,014.82-255,090.79

Finding the Fourth Proportional to 340,121.35, 470,014.82 and 255,090.79

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Solution

The fourth proportional to 340,121.35, 470,014.82 and 255,090.79 is: 352,510.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,121.35 : 470,014.82 = 255,090.79 : x
  2. Step 2: Convert to fraction form
    340,121.35/470,014.82 = 255,090.79/x
  3. Step 3: Cross multiply
    340,121.35x = 470,014.82 × 255,090.79
  4. Step 4: Simplify right side
    340,121.35x = 119,896,451,745.51
  5. Step 5: Solve for x
    x = 119,896,451,745.51/340,121.35
  6. Step 6: Final answer
    x = 352,510.81

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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.