Home / 326,311.10-489,207.45-178,567.10

Finding the Fourth Proportional to 326,311.10, 489,207.45 and 178,567.10

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Solution

The fourth proportional to 326,311.10, 489,207.45 and 178,567.10 is: 267,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,311.10 : 489,207.45 = 178,567.10 : x
  2. Step 2: Convert to fraction form
    326,311.10/489,207.45 = 178,567.10/x
  3. Step 3: Cross multiply
    326,311.10x = 489,207.45 × 178,567.10
  4. Step 4: Simplify right side
    326,311.10x = 87,356,355,644.90
  5. Step 5: Solve for x
    x = 87,356,355,644.90/326,311.10
  6. Step 6: Final answer
    x = 267,708.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.