Home / 279,122.25-385,176.97-158,271.67

Finding the Fourth Proportional to 279,122.25, 385,176.97 and 158,271.67

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Solution

The fourth proportional to 279,122.25, 385,176.97 and 158,271.67 is: 218,408.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,122.25 : 385,176.97 = 158,271.67 : x
  2. Step 2: Convert to fraction form
    279,122.25/385,176.97 = 158,271.67/x
  3. Step 3: Cross multiply
    279,122.25x = 385,176.97 × 158,271.67
  4. Step 4: Simplify right side
    279,122.25x = 60,962,602,966.75
  5. Step 5: Solve for x
    x = 60,962,602,966.75/279,122.25
  6. Step 6: Final answer
    x = 218,408.25

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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.