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Finding the Fourth Proportional to 302,706.40, 454,059.60 and 125,559.40

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Solution

The fourth proportional to 302,706.40, 454,059.60 and 125,559.40 is: 188,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,706.40 : 454,059.60 = 125,559.40 : x
  2. Step 2: Convert to fraction form
    302,706.40/454,059.60 = 125,559.40/x
  3. Step 3: Cross multiply
    302,706.40x = 454,059.60 × 125,559.40
  4. Step 4: Simplify right side
    302,706.40x = 57,011,450,940.24
  5. Step 5: Solve for x
    x = 57,011,450,940.24/302,706.40
  6. Step 6: Final answer
    x = 188,339.10

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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.