Home / 382,826.25-528,330.74-221,684.13

Finding the Fourth Proportional to 382,826.25, 528,330.74 and 221,684.13

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Solution

The fourth proportional to 382,826.25, 528,330.74 and 221,684.13 is: 305,941.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,826.25 : 528,330.74 = 221,684.13 : x
  2. Step 2: Convert to fraction form
    382,826.25/528,330.74 = 221,684.13/x
  3. Step 3: Cross multiply
    382,826.25x = 528,330.74 × 221,684.13
  4. Step 4: Simplify right side
    382,826.25x = 117,122,539,340.74
  5. Step 5: Solve for x
    x = 117,122,539,340.74/382,826.25
  6. Step 6: Final answer
    x = 305,941.77

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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.