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Finding the Fourth Proportional to 321,960.20, 483,005.10 and 111,554.60

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Solution

The fourth proportional to 321,960.20, 483,005.10 and 111,554.60 is: 167,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,960.20 : 483,005.10 = 111,554.60 : x
  2. Step 2: Convert to fraction form
    321,960.20/483,005.10 = 111,554.60/x
  3. Step 3: Cross multiply
    321,960.20x = 483,005.10 × 111,554.60
  4. Step 4: Simplify right side
    321,960.20x = 53,881,440,728.46
  5. Step 5: Solve for x
    x = 53,881,440,728.46/321,960.20
  6. Step 6: Final answer
    x = 167,354.35

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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.