Home / 406,629.79-561,142.25-225,341.35

Finding the Fourth Proportional to 406,629.79, 561,142.25 and 225,341.35

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Solution

The fourth proportional to 406,629.79, 561,142.25 and 225,341.35 is: 310,967.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,629.79 : 561,142.25 = 225,341.35 : x
  2. Step 2: Convert to fraction form
    406,629.79/561,142.25 = 225,341.35/x
  3. Step 3: Cross multiply
    406,629.79x = 561,142.25 × 225,341.35
  4. Step 4: Simplify right side
    406,629.79x = 126,448,552,157.04
  5. Step 5: Solve for x
    x = 126,448,552,157.04/406,629.79
  6. Step 6: Final answer
    x = 310,967.26

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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.