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Finding the Fourth Proportional to 304,312.78, 419,964.01 and 168,344.39

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Solution

The fourth proportional to 304,312.78, 419,964.01 and 168,344.39 is: 232,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,312.78 : 419,964.01 = 168,344.39 : x
  2. Step 2: Convert to fraction form
    304,312.78/419,964.01 = 168,344.39/x
  3. Step 3: Cross multiply
    304,312.78x = 419,964.01 × 168,344.39
  4. Step 4: Simplify right side
    304,312.78x = 70,698,583,193.77
  5. Step 5: Solve for x
    x = 70,698,583,193.77/304,312.78
  6. Step 6: Final answer
    x = 232,322.10

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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.