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Finding the Fourth Proportional to 275,571.71, 380,264.18 and 160,860.32

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Solution

The fourth proportional to 275,571.71, 380,264.18 and 160,860.32 is: 221,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,571.71 : 380,264.18 = 160,860.32 : x
  2. Step 2: Convert to fraction form
    275,571.71/380,264.18 = 160,860.32/x
  3. Step 3: Cross multiply
    275,571.71x = 380,264.18 × 160,860.32
  4. Step 4: Simplify right side
    275,571.71x = 61,169,417,679.34
  5. Step 5: Solve for x
    x = 61,169,417,679.34/275,571.71
  6. Step 6: Final answer
    x = 221,972.78

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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.