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Finding the Fourth Proportional to 230,971.80, 346,284.90 and 125,909.40

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Solution

The fourth proportional to 230,971.80, 346,284.90 and 125,909.40 is: 188,769.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,971.80 : 346,284.90 = 125,909.40 : x
  2. Step 2: Convert to fraction form
    230,971.80/346,284.90 = 125,909.40/x
  3. Step 3: Cross multiply
    230,971.80x = 346,284.90 × 125,909.40
  4. Step 4: Simplify right side
    230,971.80x = 43,600,523,988.06
  5. Step 5: Solve for x
    x = 43,600,523,988.06/230,971.80
  6. Step 6: Final answer
    x = 188,769.90

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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.