Home / 402,584.10-555,559.83-221,292.15

Finding the Fourth Proportional to 402,584.10, 555,559.83 and 221,292.15

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Solution

The fourth proportional to 402,584.10, 555,559.83 and 221,292.15 is: 305,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,584.10 : 555,559.83 = 221,292.15 : x
  2. Step 2: Convert to fraction form
    402,584.10/555,559.83 = 221,292.15/x
  3. Step 3: Cross multiply
    402,584.10x = 555,559.83 × 221,292.15
  4. Step 4: Simplify right side
    402,584.10x = 122,941,029,234.33
  5. Step 5: Solve for x
    x = 122,941,029,234.33/402,584.10
  6. Step 6: Final answer
    x = 305,379.74

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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.