Home / 395,206.04-545,385.70-213,917.92

Finding the Fourth Proportional to 395,206.04, 545,385.70 and 213,917.92

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Solution

The fourth proportional to 395,206.04, 545,385.70 and 213,917.92 is: 295,207.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,206.04 : 545,385.70 = 213,917.92 : x
  2. Step 2: Convert to fraction form
    395,206.04/545,385.70 = 213,917.92/x
  3. Step 3: Cross multiply
    395,206.04x = 545,385.70 × 213,917.92
  4. Step 4: Simplify right side
    395,206.04x = 116,667,773,472.15
  5. Step 5: Solve for x
    x = 116,667,773,472.15/395,206.04
  6. Step 6: Final answer
    x = 295,207.47

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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.