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Finding the Fourth Proportional to 275,577.72, 380,272.46 and 160,866.32

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Solution

The fourth proportional to 275,577.72, 380,272.46 and 160,866.32 is: 221,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,577.72 : 380,272.46 = 160,866.32 : x
  2. Step 2: Convert to fraction form
    275,577.72/380,272.46 = 160,866.32/x
  3. Step 3: Cross multiply
    275,577.72x = 380,272.46 × 160,866.32
  4. Step 4: Simplify right side
    275,577.72x = 61,173,031,237.55
  5. Step 5: Solve for x
    x = 61,173,031,237.55/275,577.72
  6. Step 6: Final answer
    x = 221,981.05

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1.5x scale

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.