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Finding the Fourth Proportional to 304,440.60, 420,121.80 and 168,474.48

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Solution

The fourth proportional to 304,440.60, 420,121.80 and 168,474.48 is: 232,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,440.60 : 420,121.80 = 168,474.48 : x
  2. Step 2: Convert to fraction form
    304,440.60/420,121.80 = 168,474.48/x
  3. Step 3: Cross multiply
    304,440.60x = 420,121.80 × 168,474.48
  4. Step 4: Simplify right side
    304,440.60x = 70,779,801,791.66
  5. Step 5: Solve for x
    x = 70,779,801,791.66/304,440.60
  6. Step 6: Final answer
    x = 232,491.34

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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.