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Finding the Fourth Proportional to 201,280.16, 301,930.32 and 76,630.88

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Solution

The fourth proportional to 201,280.16, 301,930.32 and 76,630.88 is: 114,950.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,280.16 : 301,930.32 = 76,630.88 : x
  2. Step 2: Convert to fraction form
    201,280.16/301,930.32 = 76,630.88/x
  3. Step 3: Cross multiply
    201,280.16x = 301,930.32 × 76,630.88
  4. Step 4: Simplify right side
    201,280.16x = 23,137,186,120.28
  5. Step 5: Solve for x
    x = 23,137,186,120.28/201,280.16
  6. Step 6: Final answer
    x = 114,950.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.