Home / 305,704.06-458,381.13-128,061.34

Finding the Fourth Proportional to 305,704.06, 458,381.13 and 128,061.34

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Solution

The fourth proportional to 305,704.06, 458,381.13 and 128,061.34 is: 192,018.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,704.06 : 458,381.13 = 128,061.34 : x
  2. Step 2: Convert to fraction form
    305,704.06/458,381.13 = 128,061.34/x
  3. Step 3: Cross multiply
    305,704.06x = 458,381.13 × 128,061.34
  4. Step 4: Simplify right side
    305,704.06x = 58,700,900,112.33
  5. Step 5: Solve for x
    x = 58,700,900,112.33/305,704.06
  6. Step 6: Final answer
    x = 192,018.71

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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.