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Finding the Fourth Proportional to 280,057.94, 386,464.59 and 159,182.45

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Solution

The fourth proportional to 280,057.94, 386,464.59 and 159,182.45 is: 219,663.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,057.94 : 386,464.59 = 159,182.45 : x
  2. Step 2: Convert to fraction form
    280,057.94/386,464.59 = 159,182.45/x
  3. Step 3: Cross multiply
    280,057.94x = 386,464.59 × 159,182.45
  4. Step 4: Simplify right side
    280,057.94x = 61,518,380,274.45
  5. Step 5: Solve for x
    x = 61,518,380,274.45/280,057.94
  6. Step 6: Final answer
    x = 219,663.05

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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.