Home / 345,984.69-477,377.46-210,015.30

Finding the Fourth Proportional to 345,984.69, 477,377.46 and 210,015.30

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Solution

The fourth proportional to 345,984.69, 477,377.46 and 210,015.30 is: 289,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,984.69 : 477,377.46 = 210,015.30 : x
  2. Step 2: Convert to fraction form
    345,984.69/477,377.46 = 210,015.30/x
  3. Step 3: Cross multiply
    345,984.69x = 477,377.46 × 210,015.30
  4. Step 4: Simplify right side
    345,984.69x = 100,256,570,475.14
  5. Step 5: Solve for x
    x = 100,256,570,475.14/345,984.69
  6. Step 6: Final answer
    x = 289,771.70

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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.