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Finding the Fourth Proportional to 304,439.26, 420,115.86 and 168,478.96

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Solution

The fourth proportional to 304,439.26, 420,115.86 and 168,478.96 is: 232,495.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,439.26 : 420,115.86 = 168,478.96 : x
  2. Step 2: Convert to fraction form
    304,439.26/420,115.86 = 168,478.96/x
  3. Step 3: Cross multiply
    304,439.26x = 420,115.86 × 168,478.96
  4. Step 4: Simplify right side
    304,439.26x = 70,780,683,172.31
  5. Step 5: Solve for x
    x = 70,780,683,172.31/304,439.26
  6. Step 6: Final answer
    x = 232,495.25

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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.