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Finding the Fourth Proportional to 385,258, 531,656.04 and 251,122

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Solution

The fourth proportional to 385,258, 531,656.04 and 251,122 is: 346,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,258 : 531,656.04 = 251,122 : x
  2. Step 2: Convert to fraction form
    385,258/531,656.04 = 251,122/x
  3. Step 3: Cross multiply
    385,258x = 531,656.04 × 251,122
  4. Step 4: Simplify right side
    385,258x = 133,510,528,076.88
  5. Step 5: Solve for x
    x = 133,510,528,076.88/385,258
  6. Step 6: Final answer
    x = 346,548.36

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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.