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Finding the Fourth Proportional to 568,420.68, 852,611.50 and 147,700.20

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Solution

The fourth proportional to 568,420.68, 852,611.50 and 147,700.20 is: 221,545.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,420.68 : 852,611.50 = 147,700.20 : x
  2. Step 2: Convert to fraction form
    568,420.68/852,611.50 = 147,700.20/x
  3. Step 3: Cross multiply
    568,420.68x = 852,611.50 × 147,700.20
  4. Step 4: Simplify right side
    568,420.68x = 125,930,889,072.30
  5. Step 5: Solve for x
    x = 125,930,889,072.30/568,420.68
  6. Step 6: Final answer
    x = 221,545.23

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1.5x scale

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.