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Finding the Fourth Proportional to 304,530.65, 420,155.68 and 177,181.64

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Solution

The fourth proportional to 304,530.65, 420,155.68 and 177,181.64 is: 244,454.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,530.65 : 420,155.68 = 177,181.64 : x
  2. Step 2: Convert to fraction form
    304,530.65/420,155.68 = 177,181.64/x
  3. Step 3: Cross multiply
    304,530.65x = 420,155.68 × 177,181.64
  4. Step 4: Simplify right side
    304,530.65x = 74,443,869,893.98
  5. Step 5: Solve for x
    x = 74,443,869,893.98/304,530.65
  6. Step 6: Final answer
    x = 244,454.45

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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.