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Finding the Fourth Proportional to 356,451.50, 491,902.94 and 195,312.67

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Solution

The fourth proportional to 356,451.50, 491,902.94 and 195,312.67 is: 269,531.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,451.50 : 491,902.94 = 195,312.67 : x
  2. Step 2: Convert to fraction form
    356,451.50/491,902.94 = 195,312.67/x
  3. Step 3: Cross multiply
    356,451.50x = 491,902.94 × 195,312.67
  4. Step 4: Simplify right side
    356,451.50x = 96,074,875,850.77
  5. Step 5: Solve for x
    x = 96,074,875,850.77/356,451.50
  6. Step 6: Final answer
    x = 269,531.41

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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.