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Finding the Fourth Proportional to 395,709.04, 546,267.80 and 225,910.32

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Solution

The fourth proportional to 395,709.04, 546,267.80 and 225,910.32 is: 311,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,709.04 : 546,267.80 = 225,910.32 : x
  2. Step 2: Convert to fraction form
    395,709.04/546,267.80 = 225,910.32/x
  3. Step 3: Cross multiply
    395,709.04x = 546,267.80 × 225,910.32
  4. Step 4: Simplify right side
    395,709.04x = 123,407,533,503.70
  5. Step 5: Solve for x
    x = 123,407,533,503.70/395,709.04
  6. Step 6: Final answer
    x = 311,864.33

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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.