Home / 382,975.54-528,495.92-213,209.68

Finding the Fourth Proportional to 382,975.54, 528,495.92 and 213,209.68

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Solution

The fourth proportional to 382,975.54, 528,495.92 and 213,209.68 is: 294,223.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,975.54 : 528,495.92 = 213,209.68 : x
  2. Step 2: Convert to fraction form
    382,975.54/528,495.92 = 213,209.68/x
  3. Step 3: Cross multiply
    382,975.54x = 528,495.92 × 213,209.68
  4. Step 4: Simplify right side
    382,975.54x = 112,680,445,984.51
  5. Step 5: Solve for x
    x = 112,680,445,984.51/382,975.54
  6. Step 6: Final answer
    x = 294,223.61

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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.