Home / 261,379.12-361,193.52-213,615.04

Finding the Fourth Proportional to 261,379.12, 361,193.52 and 213,615.04

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Solution

The fourth proportional to 261,379.12, 361,193.52 and 213,615.04 is: 295,189.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,379.12 : 361,193.52 = 213,615.04 : x
  2. Step 2: Convert to fraction form
    261,379.12/361,193.52 = 213,615.04/x
  3. Step 3: Cross multiply
    261,379.12x = 361,193.52 × 213,615.04
  4. Step 4: Simplify right side
    261,379.12x = 77,156,368,222.54
  5. Step 5: Solve for x
    x = 77,156,368,222.54/261,379.12
  6. Step 6: Final answer
    x = 295,189.49

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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.