Home / 385,135.22-531,445.73-213,025.95

Finding the Fourth Proportional to 385,135.22, 531,445.73 and 213,025.95

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Solution

The fourth proportional to 385,135.22, 531,445.73 and 213,025.95 is: 293,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,135.22 : 531,445.73 = 213,025.95 : x
  2. Step 2: Convert to fraction form
    385,135.22/531,445.73 = 213,025.95/x
  3. Step 3: Cross multiply
    385,135.22x = 531,445.73 × 213,025.95
  4. Step 4: Simplify right side
    385,135.22x = 113,211,730,441.56
  5. Step 5: Solve for x
    x = 113,211,730,441.56/385,135.22
  6. Step 6: Final answer
    x = 293,953.20

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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.