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Finding the Fourth Proportional to 628,145.10, 942,097.47 and 243,893.97

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Solution

The fourth proportional to 628,145.10, 942,097.47 and 243,893.97 is: 365,794.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,145.10 : 942,097.47 = 243,893.97 : x
  2. Step 2: Convert to fraction form
    628,145.10/942,097.47 = 243,893.97/x
  3. Step 3: Cross multiply
    628,145.10x = 942,097.47 × 243,893.97
  4. Step 4: Simplify right side
    628,145.10x = 229,771,892,085.26
  5. Step 5: Solve for x
    x = 229,771,892,085.26/628,145.10
  6. Step 6: Final answer
    x = 365,794.29

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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.