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Finding the Fourth Proportional to 641,972.94, 962,964.21 and 168,657.42

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Solution

The fourth proportional to 641,972.94, 962,964.21 and 168,657.42 is: 252,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,972.94 : 962,964.21 = 168,657.42 : x
  2. Step 2: Convert to fraction form
    641,972.94/962,964.21 = 168,657.42/x
  3. Step 3: Cross multiply
    641,972.94x = 962,964.21 × 168,657.42
  4. Step 4: Simplify right side
    641,972.94x = 162,411,059,210.94
  5. Step 5: Solve for x
    x = 162,411,059,210.94/641,972.94
  6. Step 6: Final answer
    x = 252,987.39

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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.