Home / 377,909.56-521,491.23-208,143.67

Finding the Fourth Proportional to 377,909.56, 521,491.23 and 208,143.67

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Solution

The fourth proportional to 377,909.56, 521,491.23 and 208,143.67 is: 287,225.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,909.56 : 521,491.23 = 208,143.67 : x
  2. Step 2: Convert to fraction form
    377,909.56/521,491.23 = 208,143.67/x
  3. Step 3: Cross multiply
    377,909.56x = 521,491.23 × 208,143.67
  4. Step 4: Simplify right side
    377,909.56x = 108,545,098,485.01
  5. Step 5: Solve for x
    x = 108,545,098,485.01/377,909.56
  6. Step 6: Final answer
    x = 287,225.07

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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.