Home / 287,559.81-396,827.22-156,738.60

Finding the Fourth Proportional to 287,559.81, 396,827.22 and 156,738.60

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Solution

The fourth proportional to 287,559.81, 396,827.22 and 156,738.60 is: 216,296.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,559.81 : 396,827.22 = 156,738.60 : x
  2. Step 2: Convert to fraction form
    287,559.81/396,827.22 = 156,738.60/x
  3. Step 3: Cross multiply
    287,559.81x = 396,827.22 × 156,738.60
  4. Step 4: Simplify right side
    287,559.81x = 62,198,142,904.69
  5. Step 5: Solve for x
    x = 62,198,142,904.69/287,559.81
  6. Step 6: Final answer
    x = 216,296.37

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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.