Home / 287,538.20-396,804.28-166,751.10

Finding the Fourth Proportional to 287,538.20, 396,804.28 and 166,751.10

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Solution

The fourth proportional to 287,538.20, 396,804.28 and 166,751.10 is: 230,117.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,538.20 : 396,804.28 = 166,751.10 : x
  2. Step 2: Convert to fraction form
    287,538.20/396,804.28 = 166,751.10/x
  3. Step 3: Cross multiply
    287,538.20x = 396,804.28 × 166,751.10
  4. Step 4: Simplify right side
    287,538.20x = 66,167,548,607.56
  5. Step 5: Solve for x
    x = 66,167,548,607.56/287,538.20
  6. Step 6: Final answer
    x = 230,117.42

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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.