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Finding the Fourth Proportional to 382,763.69, 528,209.70 and 210,677.97

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Solution

The fourth proportional to 382,763.69, 528,209.70 and 210,677.97 is: 290,733.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,763.69 : 528,209.70 = 210,677.97 : x
  2. Step 2: Convert to fraction form
    382,763.69/528,209.70 = 210,677.97/x
  3. Step 3: Cross multiply
    382,763.69x = 528,209.70 × 210,677.97
  4. Step 4: Simplify right side
    382,763.69x = 111,282,147,330.31
  5. Step 5: Solve for x
    x = 111,282,147,330.31/382,763.69
  6. Step 6: Final answer
    x = 290,733.29

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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.