Home / 289,717.40-434,619.30-102,714.20

Finding the Fourth Proportional to 289,717.40, 434,619.30 and 102,714.20

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Solution

The fourth proportional to 289,717.40, 434,619.30 and 102,714.20 is: 154,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,717.40 : 434,619.30 = 102,714.20 : x
  2. Step 2: Convert to fraction form
    289,717.40/434,619.30 = 102,714.20/x
  3. Step 3: Cross multiply
    289,717.40x = 434,619.30 × 102,714.20
  4. Step 4: Simplify right side
    289,717.40x = 44,641,573,704.06
  5. Step 5: Solve for x
    x = 44,641,573,704.06/289,717.40
  6. Step 6: Final answer
    x = 154,086.62

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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.