Home / 382,977.48-528,509.70-213,217.68

Finding the Fourth Proportional to 382,977.48, 528,509.70 and 213,217.68

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Solution

The fourth proportional to 382,977.48, 528,509.70 and 213,217.68 is: 294,240.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,977.48 : 528,509.70 = 213,217.68 : x
  2. Step 2: Convert to fraction form
    382,977.48/528,509.70 = 213,217.68/x
  3. Step 3: Cross multiply
    382,977.48x = 528,509.70 × 213,217.68
  4. Step 4: Simplify right side
    382,977.48x = 112,687,612,091.50
  5. Step 5: Solve for x
    x = 112,687,612,091.50/382,977.48
  6. Step 6: Final answer
    x = 294,240.83

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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.