Home / 318,214.10-439,151.24-197,394.31

Finding the Fourth Proportional to 318,214.10, 439,151.24 and 197,394.31

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Solution

The fourth proportional to 318,214.10, 439,151.24 and 197,394.31 is: 272,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,214.10 : 439,151.24 = 197,394.31 : x
  2. Step 2: Convert to fraction form
    318,214.10/439,151.24 = 197,394.31/x
  3. Step 3: Cross multiply
    318,214.10x = 439,151.24 × 197,394.31
  4. Step 4: Simplify right side
    318,214.10x = 86,685,957,047.87
  5. Step 5: Solve for x
    x = 86,685,957,047.87/318,214.10
  6. Step 6: Final answer
    x = 272,413.94

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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.