Home / 287,600.02-396,880.04-160,272.34

Finding the Fourth Proportional to 287,600.02, 396,880.04 and 160,272.34

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Solution

The fourth proportional to 287,600.02, 396,880.04 and 160,272.34 is: 221,171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,600.02 : 396,880.04 = 160,272.34 : x
  2. Step 2: Convert to fraction form
    287,600.02/396,880.04 = 160,272.34/x
  3. Step 3: Cross multiply
    287,600.02x = 396,880.04 × 160,272.34
  4. Step 4: Simplify right side
    287,600.02x = 63,608,892,710.09
  5. Step 5: Solve for x
    x = 63,608,892,710.09/287,600.02
  6. Step 6: Final answer
    x = 221,171.38

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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.