Home / 280,056.94-386,463.21-159,181.45

Finding the Fourth Proportional to 280,056.94, 386,463.21 and 159,181.45

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Solution

The fourth proportional to 280,056.94, 386,463.21 and 159,181.45 is: 219,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,056.94 : 386,463.21 = 159,181.45 : x
  2. Step 2: Convert to fraction form
    280,056.94/386,463.21 = 159,181.45/x
  3. Step 3: Cross multiply
    280,056.94x = 386,463.21 × 159,181.45
  4. Step 4: Simplify right side
    280,056.94x = 61,517,774,139.45
  5. Step 5: Solve for x
    x = 61,517,774,139.45/280,056.94
  6. Step 6: Final answer
    x = 219,661.67

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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.