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Finding the Fourth Proportional to 280,044.37, 386,446.03 and 159,168.88

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Solution

The fourth proportional to 280,044.37, 386,446.03 and 159,168.88 is: 219,644.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,044.37 : 386,446.03 = 159,168.88 : x
  2. Step 2: Convert to fraction form
    280,044.37/386,446.03 = 159,168.88/x
  3. Step 3: Cross multiply
    280,044.37x = 386,446.03 × 159,168.88
  4. Step 4: Simplify right side
    280,044.37x = 61,510,180,411.51
  5. Step 5: Solve for x
    x = 61,510,180,411.51/280,044.37
  6. Step 6: Final answer
    x = 219,644.41

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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.