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Finding the Fourth Proportional to 374,902.78, 517,365.78 and 205,136.86

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Solution

The fourth proportional to 374,902.78, 517,365.78 and 205,136.86 is: 283,088.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,902.78 : 517,365.78 = 205,136.86 : x
  2. Step 2: Convert to fraction form
    374,902.78/517,365.78 = 205,136.86/x
  3. Step 3: Cross multiply
    374,902.78x = 517,365.78 × 205,136.86
  4. Step 4: Simplify right side
    374,902.78x = 106,130,791,580.65
  5. Step 5: Solve for x
    x = 106,130,791,580.65/374,902.78
  6. Step 6: Final answer
    x = 283,088.84

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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.