Home / 259,559.20-389,338.80-93,325.60

Finding the Fourth Proportional to 259,559.20, 389,338.80 and 93,325.60

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Solution

The fourth proportional to 259,559.20, 389,338.80 and 93,325.60 is: 139,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,559.20 : 389,338.80 = 93,325.60 : x
  2. Step 2: Convert to fraction form
    259,559.20/389,338.80 = 93,325.60/x
  3. Step 3: Cross multiply
    259,559.20x = 389,338.80 × 93,325.60
  4. Step 4: Simplify right side
    259,559.20x = 36,335,277,113.28
  5. Step 5: Solve for x
    x = 36,335,277,113.28/259,559.20
  6. Step 6: Final answer
    x = 139,988.40

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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.