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Finding the Fourth Proportional to 352,709.96, 486,816.44 and 216,860.22

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Solution

The fourth proportional to 352,709.96, 486,816.44 and 216,860.22 is: 299,314.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,709.96 : 486,816.44 = 216,860.22 : x
  2. Step 2: Convert to fraction form
    352,709.96/486,816.44 = 216,860.22/x
  3. Step 3: Cross multiply
    352,709.96x = 486,816.44 × 216,860.22
  4. Step 4: Simplify right side
    352,709.96x = 105,571,119,193.72
  5. Step 5: Solve for x
    x = 105,571,119,193.72/352,709.96
  6. Step 6: Final answer
    x = 299,314.26

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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.