Home / 445,501.20-668,277.40-130,006.80

Finding the Fourth Proportional to 445,501.20, 668,277.40 and 130,006.80

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Solution

The fourth proportional to 445,501.20, 668,277.40 and 130,006.80 is: 195,017.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,501.20 : 668,277.40 = 130,006.80 : x
  2. Step 2: Convert to fraction form
    445,501.20/668,277.40 = 130,006.80/x
  3. Step 3: Cross multiply
    445,501.20x = 668,277.40 × 130,006.80
  4. Step 4: Simplify right side
    445,501.20x = 86,880,606,286.32
  5. Step 5: Solve for x
    x = 86,880,606,286.32/445,501.20
  6. Step 6: Final answer
    x = 195,017.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.