Home / 279,667.17-385,941.39-152,343.69

Finding the Fourth Proportional to 279,667.17, 385,941.39 and 152,343.69

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Solution

The fourth proportional to 279,667.17, 385,941.39 and 152,343.69 is: 210,234.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,667.17 : 385,941.39 = 152,343.69 : x
  2. Step 2: Convert to fraction form
    279,667.17/385,941.39 = 152,343.69/x
  3. Step 3: Cross multiply
    279,667.17x = 385,941.39 × 152,343.69
  4. Step 4: Simplify right side
    279,667.17x = 58,795,735,476.33
  5. Step 5: Solve for x
    x = 58,795,735,476.33/279,667.17
  6. Step 6: Final answer
    x = 210,234.67

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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.