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Finding the Fourth Proportional to 329,015.20, 493,753.20 and 210,973.60

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Solution

The fourth proportional to 329,015.20, 493,753.20 and 210,973.60 is: 316,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,015.20 : 493,753.20 = 210,973.60 : x
  2. Step 2: Convert to fraction form
    329,015.20/493,753.20 = 210,973.60/x
  3. Step 3: Cross multiply
    329,015.20x = 493,753.20 × 210,973.60
  4. Step 4: Simplify right side
    329,015.20x = 104,168,890,115.52
  5. Step 5: Solve for x
    x = 104,168,890,115.52/329,015.20
  6. Step 6: Final answer
    x = 316,608.14

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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.