Home / 278,571.04-383,567.26-217,563.66

Finding the Fourth Proportional to 278,571.04, 383,567.26 and 217,563.66

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Solution

The fourth proportional to 278,571.04, 383,567.26 and 217,563.66 is: 299,565.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,571.04 : 383,567.26 = 217,563.66 : x
  2. Step 2: Convert to fraction form
    278,571.04/383,567.26 = 217,563.66/x
  3. Step 3: Cross multiply
    278,571.04x = 383,567.26 × 217,563.66
  4. Step 4: Simplify right side
    278,571.04x = 83,450,296,941.77
  5. Step 5: Solve for x
    x = 83,450,296,941.77/278,571.04
  6. Step 6: Final answer
    x = 299,565.59

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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.