Home / 279,169.24-385,648.14-216,317.56

Finding the Fourth Proportional to 279,169.24, 385,648.14 and 216,317.56

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Solution

The fourth proportional to 279,169.24, 385,648.14 and 216,317.56 is: 298,823.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,169.24 : 385,648.14 = 216,317.56 : x
  2. Step 2: Convert to fraction form
    279,169.24/385,648.14 = 216,317.56/x
  3. Step 3: Cross multiply
    279,169.24x = 385,648.14 × 216,317.56
  4. Step 4: Simplify right side
    279,169.24x = 83,422,464,663.34
  5. Step 5: Solve for x
    x = 83,422,464,663.34/279,169.24
  6. Step 6: Final answer
    x = 298,823.98

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1.5x scale

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.