Home / 287,627.63-396,928.08-160,311.42

Finding the Fourth Proportional to 287,627.63, 396,928.08 and 160,311.42

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Solution

The fourth proportional to 287,627.63, 396,928.08 and 160,311.42 is: 221,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,627.63 : 396,928.08 = 160,311.42 : x
  2. Step 2: Convert to fraction form
    287,627.63/396,928.08 = 160,311.42/x
  3. Step 3: Cross multiply
    287,627.63x = 396,928.08 × 160,311.42
  4. Step 4: Simplify right side
    287,627.63x = 63,632,104,142.67
  5. Step 5: Solve for x
    x = 63,632,104,142.67/287,627.63
  6. Step 6: Final answer
    x = 221,230.85

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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.