Home / 326,319.10-489,219.45-178,575.10

Finding the Fourth Proportional to 326,319.10, 489,219.45 and 178,575.10

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Solution

The fourth proportional to 326,319.10, 489,219.45 and 178,575.10 is: 267,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,319.10 : 489,219.45 = 178,575.10 : x
  2. Step 2: Convert to fraction form
    326,319.10/489,219.45 = 178,575.10/x
  3. Step 3: Cross multiply
    326,319.10x = 489,219.45 × 178,575.10
  4. Step 4: Simplify right side
    326,319.10x = 87,362,412,205.70
  5. Step 5: Solve for x
    x = 87,362,412,205.70/326,319.10
  6. Step 6: Final answer
    x = 267,720.81

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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.