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Finding the Fourth Proportional to 347,267.60, 520,901.40 and 213,714.80

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Solution

The fourth proportional to 347,267.60, 520,901.40 and 213,714.80 is: 320,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,267.60 : 520,901.40 = 213,714.80 : x
  2. Step 2: Convert to fraction form
    347,267.60/520,901.40 = 213,714.80/x
  3. Step 3: Cross multiply
    347,267.60x = 520,901.40 × 213,714.80
  4. Step 4: Simplify right side
    347,267.60x = 111,324,338,520.72
  5. Step 5: Solve for x
    x = 111,324,338,520.72/347,267.60
  6. Step 6: Final answer
    x = 320,572.20

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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.