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Finding the Fourth Proportional to 382,893.85, 528,384.76 and 239,732.83

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Solution

The fourth proportional to 382,893.85, 528,384.76 and 239,732.83 is: 330,825.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,893.85 : 528,384.76 = 239,732.83 : x
  2. Step 2: Convert to fraction form
    382,893.85/528,384.76 = 239,732.83/x
  3. Step 3: Cross multiply
    382,893.85x = 528,384.76 × 239,732.83
  4. Step 4: Simplify right side
    382,893.85x = 126,671,173,843.67
  5. Step 5: Solve for x
    x = 126,671,173,843.67/382,893.85
  6. Step 6: Final answer
    x = 330,825.83

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1.5x scale

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.