Home / 287,557.81-396,824.46-156,736.60

Finding the Fourth Proportional to 287,557.81, 396,824.46 and 156,736.60

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Solution

The fourth proportional to 287,557.81, 396,824.46 and 156,736.60 is: 216,293.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,557.81 : 396,824.46 = 156,736.60 : x
  2. Step 2: Convert to fraction form
    287,557.81/396,824.46 = 156,736.60/x
  3. Step 3: Cross multiply
    287,557.81x = 396,824.46 × 156,736.60
  4. Step 4: Simplify right side
    287,557.81x = 62,196,916,657.24
  5. Step 5: Solve for x
    x = 62,196,916,657.24/287,557.81
  6. Step 6: Final answer
    x = 216,293.61

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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.