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Finding the Fourth Proportional to 304,649.75, 420,440.31 and 168,696.34

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Solution

The fourth proportional to 304,649.75, 420,440.31 and 168,696.34 is: 232,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,649.75 : 420,440.31 = 168,696.34 : x
  2. Step 2: Convert to fraction form
    304,649.75/420,440.31 = 168,696.34/x
  3. Step 3: Cross multiply
    304,649.75x = 420,440.31 × 168,696.34
  4. Step 4: Simplify right side
    304,649.75x = 70,926,740,434.36
  5. Step 5: Solve for x
    x = 70,926,740,434.36/304,649.75
  6. Step 6: Final answer
    x = 232,814.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.