Home / 437,438.57-656,095.55-137,880.20

Finding the Fourth Proportional to 437,438.57, 656,095.55 and 137,880.20

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Solution

The fourth proportional to 437,438.57, 656,095.55 and 137,880.20 is: 206,800.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,438.57 : 656,095.55 = 137,880.20 : x
  2. Step 2: Convert to fraction form
    437,438.57/656,095.55 = 137,880.20/x
  3. Step 3: Cross multiply
    437,438.57x = 656,095.55 × 137,880.20
  4. Step 4: Simplify right side
    437,438.57x = 90,462,586,603.95
  5. Step 5: Solve for x
    x = 90,462,586,603.95/437,438.57
  6. Step 6: Final answer
    x = 206,800.67

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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.