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Finding the Fourth Proportional to 256,968, 385,196.04 and 123,810.48

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Solution

The fourth proportional to 256,968, 385,196.04 and 123,810.48 is: 185,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,968 : 385,196.04 = 123,810.48 : x
  2. Step 2: Convert to fraction form
    256,968/385,196.04 = 123,810.48/x
  3. Step 3: Cross multiply
    256,968x = 385,196.04 × 123,810.48
  4. Step 4: Simplify right side
    256,968x = 47,691,306,606.50
  5. Step 5: Solve for x
    x = 47,691,306,606.50/256,968
  6. Step 6: Final answer
    x = 185,592.40

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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.