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Finding the Fourth Proportional to 286,597.74, 395,502.03 and 159,270.78

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Solution

The fourth proportional to 286,597.74, 395,502.03 and 159,270.78 is: 219,792.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,597.74 : 395,502.03 = 159,270.78 : x
  2. Step 2: Convert to fraction form
    286,597.74/395,502.03 = 159,270.78/x
  3. Step 3: Cross multiply
    286,597.74x = 395,502.03 × 159,270.78
  4. Step 4: Simplify right side
    286,597.74x = 62,991,916,809.68
  5. Step 5: Solve for x
    x = 62,991,916,809.68/286,597.74
  6. Step 6: Final answer
    x = 219,792.09

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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.