Home / 382,979.04-528,500.74-213,213.18

Finding the Fourth Proportional to 382,979.04, 528,500.74 and 213,213.18

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Solution

The fourth proportional to 382,979.04, 528,500.74 and 213,213.18 is: 294,228.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,979.04 : 528,500.74 = 213,213.18 : x
  2. Step 2: Convert to fraction form
    382,979.04/528,500.74 = 213,213.18/x
  3. Step 3: Cross multiply
    382,979.04x = 528,500.74 × 213,213.18
  4. Step 4: Simplify right side
    382,979.04x = 112,683,323,407.75
  5. Step 5: Solve for x
    x = 112,683,323,407.75/382,979.04
  6. Step 6: Final answer
    x = 294,228.43

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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.