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Finding the Fourth Proportional to 368,027.17, 507,802.42 and 215,035.78

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Solution

The fourth proportional to 368,027.17, 507,802.42 and 215,035.78 is: 296,705.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,027.17 : 507,802.42 = 215,035.78 : x
  2. Step 2: Convert to fraction form
    368,027.17/507,802.42 = 215,035.78/x
  3. Step 3: Cross multiply
    368,027.17x = 507,802.42 × 215,035.78
  4. Step 4: Simplify right side
    368,027.17x = 109,195,687,884.50
  5. Step 5: Solve for x
    x = 109,195,687,884.50/368,027.17
  6. Step 6: Final answer
    x = 296,705.50

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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.