Home / 245,960.76-339,436.34-137,065.21

Finding the Fourth Proportional to 245,960.76, 339,436.34 and 137,065.21

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Solution

The fourth proportional to 245,960.76, 339,436.34 and 137,065.21 is: 189,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,960.76 : 339,436.34 = 137,065.21 : x
  2. Step 2: Convert to fraction form
    245,960.76/339,436.34 = 137,065.21/x
  3. Step 3: Cross multiply
    245,960.76x = 339,436.34 × 137,065.21
  4. Step 4: Simplify right side
    245,960.76x = 46,524,913,223.73
  5. Step 5: Solve for x
    x = 46,524,913,223.73/245,960.76
  6. Step 6: Final answer
    x = 189,155.84

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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.