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Finding the Fourth Proportional to 402,554.10, 603,930.03 and 200,245.67

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Solution

The fourth proportional to 402,554.10, 603,930.03 and 200,245.67 is: 300,417.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,554.10 : 603,930.03 = 200,245.67 : x
  2. Step 2: Convert to fraction form
    402,554.10/603,930.03 = 200,245.67/x
  3. Step 3: Cross multiply
    402,554.10x = 603,930.03 × 200,245.67
  4. Step 4: Simplify right side
    402,554.10x = 120,934,371,984.64
  5. Step 5: Solve for x
    x = 120,934,371,984.64/402,554.10
  6. Step 6: Final answer
    x = 300,417.69

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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.