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Finding the Fourth Proportional to 245,290.55, 338,504.01 and 148,493.12

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Solution

The fourth proportional to 245,290.55, 338,504.01 and 148,493.12 is: 204,922.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,290.55 : 338,504.01 = 148,493.12 : x
  2. Step 2: Convert to fraction form
    245,290.55/338,504.01 = 148,493.12/x
  3. Step 3: Cross multiply
    245,290.55x = 338,504.01 × 148,493.12
  4. Step 4: Simplify right side
    245,290.55x = 50,265,516,577.41
  5. Step 5: Solve for x
    x = 50,265,516,577.41/245,290.55
  6. Step 6: Final answer
    x = 204,922.35

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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.