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Finding the Fourth Proportional to 229,307.60, 343,993.80 and 71,519.60

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Solution

The fourth proportional to 229,307.60, 343,993.80 and 71,519.60 is: 107,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,307.60 : 343,993.80 = 71,519.60 : x
  2. Step 2: Convert to fraction form
    229,307.60/343,993.80 = 71,519.60/x
  3. Step 3: Cross multiply
    229,307.60x = 343,993.80 × 71,519.60
  4. Step 4: Simplify right side
    229,307.60x = 24,602,298,978.48
  5. Step 5: Solve for x
    x = 24,602,298,978.48/229,307.60
  6. Step 6: Final answer
    x = 107,289.51

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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.