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Finding the Fourth Proportional to 315,100.28, 434,886.84 and 186,052.47

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Solution

The fourth proportional to 315,100.28, 434,886.84 and 186,052.47 is: 256,781.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,100.28 : 434,886.84 = 186,052.47 : x
  2. Step 2: Convert to fraction form
    315,100.28/434,886.84 = 186,052.47/x
  3. Step 3: Cross multiply
    315,100.28x = 434,886.84 × 186,052.47
  4. Step 4: Simplify right side
    315,100.28x = 80,911,770,752.49
  5. Step 5: Solve for x
    x = 80,911,770,752.49/315,100.28
  6. Step 6: Final answer
    x = 256,781.02

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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.