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Finding the Fourth Proportional to 286,338.56, 395,147.52 and 159,014.40

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Solution

The fourth proportional to 286,338.56, 395,147.52 and 159,014.40 is: 219,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,338.56 : 395,147.52 = 159,014.40 : x
  2. Step 2: Convert to fraction form
    286,338.56/395,147.52 = 159,014.40/x
  3. Step 3: Cross multiply
    286,338.56x = 395,147.52 × 159,014.40
  4. Step 4: Simplify right side
    286,338.56x = 62,834,145,804.29
  5. Step 5: Solve for x
    x = 62,834,145,804.29/286,338.56
  6. Step 6: Final answer
    x = 219,440.04

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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.