Home / 259,352.93-388,702.15-139,111.67

Finding the Fourth Proportional to 259,352.93, 388,702.15 and 139,111.67

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Solution

The fourth proportional to 259,352.93, 388,702.15 and 139,111.67 is: 208,491.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,352.93 : 388,702.15 = 139,111.67 : x
  2. Step 2: Convert to fraction form
    259,352.93/388,702.15 = 139,111.67/x
  3. Step 3: Cross multiply
    259,352.93x = 388,702.15 × 139,111.67
  4. Step 4: Simplify right side
    259,352.93x = 54,073,005,219.09
  5. Step 5: Solve for x
    x = 54,073,005,219.09/259,352.93
  6. Step 6: Final answer
    x = 208,491.98

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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.