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Finding the Fourth Proportional to 221,017.84, 331,526.40 and 54,805.84

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Solution

The fourth proportional to 221,017.84, 331,526.40 and 54,805.84 is: 82,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,017.84 : 331,526.40 = 54,805.84 : x
  2. Step 2: Convert to fraction form
    221,017.84/331,526.40 = 54,805.84/x
  3. Step 3: Cross multiply
    221,017.84x = 331,526.40 × 54,805.84
  4. Step 4: Simplify right side
    221,017.84x = 18,169,582,834.18
  5. Step 5: Solve for x
    x = 18,169,582,834.18/221,017.84
  6. Step 6: Final answer
    x = 82,208.67

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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.