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Finding the Fourth Proportional to 346,604.20, 520,100.70 and 146,890.60

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Solution

The fourth proportional to 346,604.20, 520,100.70 and 146,890.60 is: 220,418.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,604.20 : 520,100.70 = 146,890.60 : x
  2. Step 2: Convert to fraction form
    346,604.20/520,100.70 = 146,890.60/x
  3. Step 3: Cross multiply
    346,604.20x = 520,100.70 × 146,890.60
  4. Step 4: Simplify right side
    346,604.20x = 76,397,903,883.42
  5. Step 5: Solve for x
    x = 76,397,903,883.42/346,604.20
  6. Step 6: Final answer
    x = 220,418.29

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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.