Home / 221,569.90-332,354.85-209,905.90

Finding the Fourth Proportional to 221,569.90, 332,354.85 and 209,905.90

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Solution

The fourth proportional to 221,569.90, 332,354.85 and 209,905.90 is: 314,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,569.90 : 332,354.85 = 209,905.90 : x
  2. Step 2: Convert to fraction form
    221,569.90/332,354.85 = 209,905.90/x
  3. Step 3: Cross multiply
    221,569.90x = 332,354.85 × 209,905.90
  4. Step 4: Simplify right side
    221,569.90x = 69,763,243,908.62
  5. Step 5: Solve for x
    x = 69,763,243,908.62/221,569.90
  6. Step 6: Final answer
    x = 314,858.85

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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.