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Finding the Fourth Proportional to 245,166.21, 338,311.15 and 137,754.14

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Solution

The fourth proportional to 245,166.21, 338,311.15 and 137,754.14 is: 190,090.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,166.21 : 338,311.15 = 137,754.14 : x
  2. Step 2: Convert to fraction form
    245,166.21/338,311.15 = 137,754.14/x
  3. Step 3: Cross multiply
    245,166.21x = 338,311.15 × 137,754.14
  4. Step 4: Simplify right side
    245,166.21x = 46,603,759,484.72
  5. Step 5: Solve for x
    x = 46,603,759,484.72/245,166.21
  6. Step 6: Final answer
    x = 190,090.47

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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.