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Finding the Fourth Proportional to 397,070.70, 595,679.85 and 130,841.72

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Solution

The fourth proportional to 397,070.70, 595,679.85 and 130,841.72 is: 196,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,070.70 : 595,679.85 = 130,841.72 : x
  2. Step 2: Convert to fraction form
    397,070.70/595,679.85 = 130,841.72/x
  3. Step 3: Cross multiply
    397,070.70x = 595,679.85 × 130,841.72
  4. Step 4: Simplify right side
    397,070.70x = 77,939,776,143.34
  5. Step 5: Solve for x
    x = 77,939,776,143.34/397,070.70
  6. Step 6: Final answer
    x = 196,286.90

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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.