Home / 406,629.35-561,141.65-225,340.91

Finding the Fourth Proportional to 406,629.35, 561,141.65 and 225,340.91

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Solution

The fourth proportional to 406,629.35, 561,141.65 and 225,340.91 is: 310,966.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,629.35 : 561,141.65 = 225,340.91 : x
  2. Step 2: Convert to fraction form
    406,629.35/561,141.65 = 225,340.91/x
  3. Step 3: Cross multiply
    406,629.35x = 561,141.65 × 225,340.91
  4. Step 4: Simplify right side
    406,629.35x = 126,448,168,083.70
  5. Step 5: Solve for x
    x = 126,448,168,083.70/406,629.35
  6. Step 6: Final answer
    x = 310,966.66

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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.