Home / 392,922.56-589,427.36-140,262.08

Finding the Fourth Proportional to 392,922.56, 589,427.36 and 140,262.08

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Solution

The fourth proportional to 392,922.56, 589,427.36 and 140,262.08 is: 210,408.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,922.56 : 589,427.36 = 140,262.08 : x
  2. Step 2: Convert to fraction form
    392,922.56/589,427.36 = 140,262.08/x
  3. Step 3: Cross multiply
    392,922.56x = 589,427.36 × 140,262.08
  4. Step 4: Simplify right side
    392,922.56x = 82,674,307,522.51
  5. Step 5: Solve for x
    x = 82,674,307,522.51/392,922.56
  6. Step 6: Final answer
    x = 210,408.66

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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.