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Finding the Fourth Proportional to 341,260, 470,909.28 and 220,406.56

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Solution

The fourth proportional to 341,260, 470,909.28 and 220,406.56 is: 304,141.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,260 : 470,909.28 = 220,406.56 : x
  2. Step 2: Convert to fraction form
    341,260/470,909.28 = 220,406.56/x
  3. Step 3: Cross multiply
    341,260x = 470,909.28 × 220,406.56
  4. Step 4: Simplify right side
    341,260x = 103,791,494,476.88
  5. Step 5: Solve for x
    x = 103,791,494,476.88/341,260
  6. Step 6: Final answer
    x = 304,141.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.