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Finding the Fourth Proportional to 280,325.94, 386,846.67 and 159,464.43

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Solution

The fourth proportional to 280,325.94, 386,846.67 and 159,464.43 is: 220,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,325.94 : 386,846.67 = 159,464.43 : x
  2. Step 2: Convert to fraction form
    280,325.94/386,846.67 = 159,464.43/x
  3. Step 3: Cross multiply
    280,325.94x = 386,846.67 × 159,464.43
  4. Step 4: Simplify right side
    280,325.94x = 61,688,283,728.95
  5. Step 5: Solve for x
    x = 61,688,283,728.95/280,325.94
  6. Step 6: Final answer
    x = 220,059.13

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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.