Home / 313,609.09-432,781.06-170,369.25

Finding the Fourth Proportional to 313,609.09, 432,781.06 and 170,369.25

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Solution

The fourth proportional to 313,609.09, 432,781.06 and 170,369.25 is: 235,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,609.09 : 432,781.06 = 170,369.25 : x
  2. Step 2: Convert to fraction form
    313,609.09/432,781.06 = 170,369.25/x
  3. Step 3: Cross multiply
    313,609.09x = 432,781.06 × 170,369.25
  4. Step 4: Simplify right side
    313,609.09x = 73,732,584,812.94
  5. Step 5: Solve for x
    x = 73,732,584,812.94/313,609.09
  6. Step 6: Final answer
    x = 235,109.84

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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.