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Finding the Fourth Proportional to 379,461.56, 569,511.66 and 189,865.04

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Solution

The fourth proportional to 379,461.56, 569,511.66 and 189,865.04 is: 284,957.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,461.56 : 569,511.66 = 189,865.04 : x
  2. Step 2: Convert to fraction form
    379,461.56/569,511.66 = 189,865.04/x
  3. Step 3: Cross multiply
    379,461.56x = 569,511.66 × 189,865.04
  4. Step 4: Simplify right side
    379,461.56x = 108,130,354,106.37
  5. Step 5: Solve for x
    x = 108,130,354,106.37/379,461.56
  6. Step 6: Final answer
    x = 284,957.33

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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.