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Finding the Fourth Proportional to 608,059.91, 912,108.40 and 208,694.88

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Solution

The fourth proportional to 608,059.91, 912,108.40 and 208,694.88 is: 313,048.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,059.91 : 912,108.40 = 208,694.88 : x
  2. Step 2: Convert to fraction form
    608,059.91/912,108.40 = 208,694.88/x
  3. Step 3: Cross multiply
    608,059.91x = 912,108.40 × 208,694.88
  4. Step 4: Simplify right side
    608,059.91x = 190,352,352,563.26
  5. Step 5: Solve for x
    x = 190,352,352,563.26/608,059.91
  6. Step 6: Final answer
    x = 313,048.68

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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.