Home / 457,154.80-685,136.07-254,742.43

Finding the Fourth Proportional to 457,154.80, 685,136.07 and 254,742.43

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Solution

The fourth proportional to 457,154.80, 685,136.07 and 254,742.43 is: 381,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,154.80 : 685,136.07 = 254,742.43 : x
  2. Step 2: Convert to fraction form
    457,154.80/685,136.07 = 254,742.43/x
  3. Step 3: Cross multiply
    457,154.80x = 685,136.07 × 254,742.43
  4. Step 4: Simplify right side
    457,154.80x = 174,533,227,352.45
  5. Step 5: Solve for x
    x = 174,533,227,352.45/457,154.80
  6. Step 6: Final answer
    x = 381,781.46

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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.