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Finding the Fourth Proportional to 356,179.40, 533,421 and 206,103.44

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Solution

The fourth proportional to 356,179.40, 533,421 and 206,103.44 is: 308,664.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,179.40 : 533,421 = 206,103.44 : x
  2. Step 2: Convert to fraction form
    356,179.40/533,421 = 206,103.44/x
  3. Step 3: Cross multiply
    356,179.40x = 533,421 × 206,103.44
  4. Step 4: Simplify right side
    356,179.40x = 109,939,903,068.24
  5. Step 5: Solve for x
    x = 109,939,903,068.24/356,179.40
  6. Step 6: Final answer
    x = 308,664.41

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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.