Home / 345,900.70-477,270.39-210,006.19

Finding the Fourth Proportional to 345,900.70, 477,270.39 and 210,006.19

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Solution

The fourth proportional to 345,900.70, 477,270.39 and 210,006.19 is: 289,764.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,900.70 : 477,270.39 = 210,006.19 : x
  2. Step 2: Convert to fraction form
    345,900.70/477,270.39 = 210,006.19/x
  3. Step 3: Cross multiply
    345,900.70x = 477,270.39 × 210,006.19
  4. Step 4: Simplify right side
    345,900.70x = 100,229,736,203.71
  5. Step 5: Solve for x
    x = 100,229,736,203.71/345,900.70
  6. Step 6: Final answer
    x = 289,764.48

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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.