Home / 663,216.51-995,018.53-213,927.43

Finding the Fourth Proportional to 663,216.51, 995,018.53 and 213,927.43

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Solution

The fourth proportional to 663,216.51, 995,018.53 and 213,927.43 is: 320,953.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,216.51 : 995,018.53 = 213,927.43 : x
  2. Step 2: Convert to fraction form
    663,216.51/995,018.53 = 213,927.43/x
  3. Step 3: Cross multiply
    663,216.51x = 995,018.53 × 213,927.43
  4. Step 4: Simplify right side
    663,216.51x = 212,861,756,169.69
  5. Step 5: Solve for x
    x = 212,861,756,169.69/663,216.51
  6. Step 6: Final answer
    x = 320,953.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.