Home / 300,988.14-415,416.54-228,630.66

Finding the Fourth Proportional to 300,988.14, 415,416.54 and 228,630.66

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Solution

The fourth proportional to 300,988.14, 415,416.54 and 228,630.66 is: 315,550.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,988.14 : 415,416.54 = 228,630.66 : x
  2. Step 2: Convert to fraction form
    300,988.14/415,416.54 = 228,630.66/x
  3. Step 3: Cross multiply
    300,988.14x = 415,416.54 × 228,630.66
  4. Step 4: Simplify right side
    300,988.14x = 94,976,957,715.12
  5. Step 5: Solve for x
    x = 94,976,957,715.12/300,988.14
  6. Step 6: Final answer
    x = 315,550.50

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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.