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Finding the Fourth Proportional to 304,374.60, 420,049.31 and 168,406.34

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Solution

The fourth proportional to 304,374.60, 420,049.31 and 168,406.34 is: 232,407.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,374.60 : 420,049.31 = 168,406.34 : x
  2. Step 2: Convert to fraction form
    304,374.60/420,049.31 = 168,406.34/x
  3. Step 3: Cross multiply
    304,374.60x = 420,049.31 × 168,406.34
  4. Step 4: Simplify right side
    304,374.60x = 70,738,963,974.35
  5. Step 5: Solve for x
    x = 70,738,963,974.35/304,374.60
  6. Step 6: Final answer
    x = 232,407.58

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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.