Home / 409,016.51-613,805.03-142,777.07

Finding the Fourth Proportional to 409,016.51, 613,805.03 and 142,777.07

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Solution

The fourth proportional to 409,016.51, 613,805.03 and 142,777.07 is: 214,263.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,016.51 : 613,805.03 = 142,777.07 : x
  2. Step 2: Convert to fraction form
    409,016.51/613,805.03 = 142,777.07/x
  3. Step 3: Cross multiply
    409,016.51x = 613,805.03 × 142,777.07
  4. Step 4: Simplify right side
    409,016.51x = 87,637,279,951.75
  5. Step 5: Solve for x
    x = 87,637,279,951.75/409,016.51
  6. Step 6: Final answer
    x = 214,263.43

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1.5x scale

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.