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Finding the Fourth Proportional to 286,608.78, 395,526.24 and 159,281.64

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Solution

The fourth proportional to 286,608.78, 395,526.24 and 159,281.64 is: 219,812.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,608.78 : 395,526.24 = 159,281.64 : x
  2. Step 2: Convert to fraction form
    286,608.78/395,526.24 = 159,281.64/x
  3. Step 3: Cross multiply
    286,608.78x = 395,526.24 × 159,281.64
  4. Step 4: Simplify right side
    286,608.78x = 63,000,068,170.23
  5. Step 5: Solve for x
    x = 63,000,068,170.23/286,608.78
  6. Step 6: Final answer
    x = 219,812.07

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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.