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Finding the Fourth Proportional to 221,907.40, 332,666.70 and 133,066.60

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Solution

The fourth proportional to 221,907.40, 332,666.70 and 133,066.60 is: 199,483.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,907.40 : 332,666.70 = 133,066.60 : x
  2. Step 2: Convert to fraction form
    221,907.40/332,666.70 = 133,066.60/x
  3. Step 3: Cross multiply
    221,907.40x = 332,666.70 × 133,066.60
  4. Step 4: Simplify right side
    221,907.40x = 44,266,826,702.22
  5. Step 5: Solve for x
    x = 44,266,826,702.22/221,907.40
  6. Step 6: Final answer
    x = 199,483.33

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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.