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Finding the Fourth Proportional to 404,912.66, 607,306.73 and 135,045.54

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Solution

The fourth proportional to 404,912.66, 607,306.73 and 135,045.54 is: 202,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,912.66 : 607,306.73 = 135,045.54 : x
  2. Step 2: Convert to fraction form
    404,912.66/607,306.73 = 135,045.54/x
  3. Step 3: Cross multiply
    404,912.66x = 607,306.73 × 135,045.54
  4. Step 4: Simplify right side
    404,912.66x = 82,014,064,623.26
  5. Step 5: Solve for x
    x = 82,014,064,623.26/404,912.66
  6. Step 6: Final answer
    x = 202,547.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.