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Finding the Fourth Proportional to 275,830.08, 380,645.76 and 156,598.08

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Solution

The fourth proportional to 275,830.08, 380,645.76 and 156,598.08 is: 216,105.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,830.08 : 380,645.76 = 156,598.08 : x
  2. Step 2: Convert to fraction form
    275,830.08/380,645.76 = 156,598.08/x
  3. Step 3: Cross multiply
    275,830.08x = 380,645.76 × 156,598.08
  4. Step 4: Simplify right side
    275,830.08x = 59,608,395,176.14
  5. Step 5: Solve for x
    x = 59,608,395,176.14/275,830.08
  6. Step 6: Final answer
    x = 216,105.49

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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.