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Finding the Fourth Proportional to 446,502.40, 669,773.12 and 221,970.40

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Solution

The fourth proportional to 446,502.40, 669,773.12 and 221,970.40 is: 332,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,502.40 : 669,773.12 = 221,970.40 : x
  2. Step 2: Convert to fraction form
    446,502.40/669,773.12 = 221,970.40/x
  3. Step 3: Cross multiply
    446,502.40x = 669,773.12 × 221,970.40
  4. Step 4: Simplify right side
    446,502.40x = 148,669,807,355.65
  5. Step 5: Solve for x
    x = 148,669,807,355.65/446,502.40
  6. Step 6: Final answer
    x = 332,965.30

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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.