Home / 340,902.15-470,448.01-187,945.76

Finding the Fourth Proportional to 340,902.15, 470,448.01 and 187,945.76

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Solution

The fourth proportional to 340,902.15, 470,448.01 and 187,945.76 is: 259,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,902.15 : 470,448.01 = 187,945.76 : x
  2. Step 2: Convert to fraction form
    340,902.15/470,448.01 = 187,945.76/x
  3. Step 3: Cross multiply
    340,902.15x = 470,448.01 × 187,945.76
  4. Step 4: Simplify right side
    340,902.15x = 88,418,708,339.26
  5. Step 5: Solve for x
    x = 88,418,708,339.26/340,902.15
  6. Step 6: Final answer
    x = 259,366.83

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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.