Home / 385,315.26-531,736.56-215,549.52

Finding the Fourth Proportional to 385,315.26, 531,736.56 and 215,549.52

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Solution

The fourth proportional to 385,315.26, 531,736.56 and 215,549.52 is: 297,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,315.26 : 531,736.56 = 215,549.52 : x
  2. Step 2: Convert to fraction form
    385,315.26/531,736.56 = 215,549.52/x
  3. Step 3: Cross multiply
    385,315.26x = 531,736.56 × 215,549.52
  4. Step 4: Simplify right side
    385,315.26x = 114,615,560,274.45
  5. Step 5: Solve for x
    x = 114,615,560,274.45/385,315.26
  6. Step 6: Final answer
    x = 297,459.18

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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.