Home / 382,821.42-528,293.57-213,095.64

Finding the Fourth Proportional to 382,821.42, 528,293.57 and 213,095.64

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Solution

The fourth proportional to 382,821.42, 528,293.57 and 213,095.64 is: 294,071.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,821.42 : 528,293.57 = 213,095.64 : x
  2. Step 2: Convert to fraction form
    382,821.42/528,293.57 = 213,095.64/x
  3. Step 3: Cross multiply
    382,821.42x = 528,293.57 × 213,095.64
  4. Step 4: Simplify right side
    382,821.42x = 112,577,055,341.56
  5. Step 5: Solve for x
    x = 112,577,055,341.56/382,821.42
  6. Step 6: Final answer
    x = 294,071.99

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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.