Home / 406,680.28-561,203.50-225,395.31

Finding the Fourth Proportional to 406,680.28, 561,203.50 and 225,395.31

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Solution

The fourth proportional to 406,680.28, 561,203.50 and 225,395.31 is: 311,037.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,680.28 : 561,203.50 = 225,395.31 : x
  2. Step 2: Convert to fraction form
    406,680.28/561,203.50 = 225,395.31/x
  3. Step 3: Cross multiply
    406,680.28x = 561,203.50 × 225,395.31
  4. Step 4: Simplify right side
    406,680.28x = 126,492,636,855.59
  5. Step 5: Solve for x
    x = 126,492,636,855.59/406,680.28
  6. Step 6: Final answer
    x = 311,037.06

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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.