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Finding the Fourth Proportional to 406,393.51, 560,817.12 and 225,104.85

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Solution

The fourth proportional to 406,393.51, 560,817.12 and 225,104.85 is: 310,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,393.51 : 560,817.12 = 225,104.85 : x
  2. Step 2: Convert to fraction form
    406,393.51/560,817.12 = 225,104.85/x
  3. Step 3: Cross multiply
    406,393.51x = 560,817.12 × 225,104.85
  4. Step 4: Simplify right side
    406,393.51x = 126,242,653,675.03
  5. Step 5: Solve for x
    x = 126,242,653,675.03/406,393.51
  6. Step 6: Final answer
    x = 310,641.41

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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.