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Finding the Fourth Proportional to 258,045.60, 386,290.80 and 226,941.60

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Solution

The fourth proportional to 258,045.60, 386,290.80 and 226,941.60 is: 339,728.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,045.60 : 386,290.80 = 226,941.60 : x
  2. Step 2: Convert to fraction form
    258,045.60/386,290.80 = 226,941.60/x
  3. Step 3: Cross multiply
    258,045.60x = 386,290.80 × 226,941.60
  4. Step 4: Simplify right side
    258,045.60x = 87,665,452,217.28
  5. Step 5: Solve for x
    x = 87,665,452,217.28/258,045.60
  6. Step 6: Final answer
    x = 339,728.53

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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.