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Finding the Fourth Proportional to 446,881.80, 670,128.30 and 147,246.60

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Solution

The fourth proportional to 446,881.80, 670,128.30 and 147,246.60 is: 220,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,881.80 : 670,128.30 = 147,246.60 : x
  2. Step 2: Convert to fraction form
    446,881.80/670,128.30 = 147,246.60/x
  3. Step 3: Cross multiply
    446,881.80x = 670,128.30 × 147,246.60
  4. Step 4: Simplify right side
    446,881.80x = 98,674,113,738.78
  5. Step 5: Solve for x
    x = 98,674,113,738.78/446,881.80
  6. Step 6: Final answer
    x = 220,805.85

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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.