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Finding the Fourth Proportional to 348,701.80, 523,101.30 and 149,020.60

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Solution

The fourth proportional to 348,701.80, 523,101.30 and 149,020.60 is: 223,551.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,701.80 : 523,101.30 = 149,020.60 : x
  2. Step 2: Convert to fraction form
    348,701.80/523,101.30 = 149,020.60/x
  3. Step 3: Cross multiply
    348,701.80x = 523,101.30 × 149,020.60
  4. Step 4: Simplify right side
    348,701.80x = 77,952,869,586.78
  5. Step 5: Solve for x
    x = 77,952,869,586.78/348,701.80
  6. Step 6: Final answer
    x = 223,551.67

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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.