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Finding the Fourth Proportional to 221,520.70, 332,281.05 and 221,520.70

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Solution

The fourth proportional to 221,520.70, 332,281.05 and 221,520.70 is: 332,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,520.70 : 332,281.05 = 221,520.70 : x
  2. Step 2: Convert to fraction form
    221,520.70/332,281.05 = 221,520.70/x
  3. Step 3: Cross multiply
    221,520.70x = 332,281.05 × 221,520.70
  4. Step 4: Simplify right side
    221,520.70x = 73,607,130,792.74
  5. Step 5: Solve for x
    x = 73,607,130,792.74/221,520.70
  6. Step 6: Final answer
    x = 332,281.05

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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.