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Finding the Fourth Proportional to 286,364.23, 395,183.56 and 159,039.82

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Solution

The fourth proportional to 286,364.23, 395,183.56 and 159,039.82 is: 219,475.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,364.23 : 395,183.56 = 159,039.82 : x
  2. Step 2: Convert to fraction form
    286,364.23/395,183.56 = 159,039.82/x
  3. Step 3: Cross multiply
    286,364.23x = 395,183.56 × 159,039.82
  4. Step 4: Simplify right side
    286,364.23x = 62,849,921,851.76
  5. Step 5: Solve for x
    x = 62,849,921,851.76/286,364.23
  6. Step 6: Final answer
    x = 219,475.46

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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.