Home / 299,154.35-412,985.37-231,018.36

Finding the Fourth Proportional to 299,154.35, 412,985.37 and 231,018.36

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Solution

The fourth proportional to 299,154.35, 412,985.37 and 231,018.36 is: 318,923.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,154.35 : 412,985.37 = 231,018.36 : x
  2. Step 2: Convert to fraction form
    299,154.35/412,985.37 = 231,018.36/x
  3. Step 3: Cross multiply
    299,154.35x = 412,985.37 × 231,018.36
  4. Step 4: Simplify right side
    299,154.35x = 95,407,202,881.39
  5. Step 5: Solve for x
    x = 95,407,202,881.39/299,154.35
  6. Step 6: Final answer
    x = 318,923.01

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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.