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Finding the Fourth Proportional to 231,714.80, 347,134.80 and 119,011.40

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Solution

The fourth proportional to 231,714.80, 347,134.80 and 119,011.40 is: 178,292.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,714.80 : 347,134.80 = 119,011.40 : x
  2. Step 2: Convert to fraction form
    231,714.80/347,134.80 = 119,011.40/x
  3. Step 3: Cross multiply
    231,714.80x = 347,134.80 × 119,011.40
  4. Step 4: Simplify right side
    231,714.80x = 41,312,998,536.72
  5. Step 5: Solve for x
    x = 41,312,998,536.72/231,714.80
  6. Step 6: Final answer
    x = 178,292.45

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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.