Home / 385,486.22-531,895.60-242,163.24

Finding the Fourth Proportional to 385,486.22, 531,895.60 and 242,163.24

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Solution

The fourth proportional to 385,486.22, 531,895.60 and 242,163.24 is: 334,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,486.22 : 531,895.60 = 242,163.24 : x
  2. Step 2: Convert to fraction form
    385,486.22/531,895.60 = 242,163.24/x
  3. Step 3: Cross multiply
    385,486.22x = 531,895.60 × 242,163.24
  4. Step 4: Simplify right side
    385,486.22x = 128,805,561,837.74
  5. Step 5: Solve for x
    x = 128,805,561,837.74/385,486.22
  6. Step 6: Final answer
    x = 334,137.92

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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.