Home / 283,149.24-390,725.82-168,421.56

Finding the Fourth Proportional to 283,149.24, 390,725.82 and 168,421.56

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Solution

The fourth proportional to 283,149.24, 390,725.82 and 168,421.56 is: 232,409.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,149.24 : 390,725.82 = 168,421.56 : x
  2. Step 2: Convert to fraction form
    283,149.24/390,725.82 = 168,421.56/x
  3. Step 3: Cross multiply
    283,149.24x = 390,725.82 × 168,421.56
  4. Step 4: Simplify right side
    283,149.24x = 65,806,652,136.68
  5. Step 5: Solve for x
    x = 65,806,652,136.68/283,149.24
  6. Step 6: Final answer
    x = 232,409.78

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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.