Home / 279,816.54-386,134.56-158,957.34

Finding the Fourth Proportional to 279,816.54, 386,134.56 and 158,957.34

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Solution

The fourth proportional to 279,816.54, 386,134.56 and 158,957.34 is: 219,354.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,816.54 : 386,134.56 = 158,957.34 : x
  2. Step 2: Convert to fraction form
    279,816.54/386,134.56 = 158,957.34/x
  3. Step 3: Cross multiply
    279,816.54x = 386,134.56 × 158,957.34
  4. Step 4: Simplify right side
    279,816.54x = 61,378,922,539.67
  5. Step 5: Solve for x
    x = 61,378,922,539.67/279,816.54
  6. Step 6: Final answer
    x = 219,354.16

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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.