Finding the Fourth Proportional to 402,595.11, 555,588.16 and 221,314.68
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Solution
The fourth proportional to 402,595.11, 555,588.16 and 221,314.68 is: 305,418.06
Step by Step Solution
- Step 1: Write the proportion equation
402,595.11 : 555,588.16 = 221,314.68 : x - Step 2: Convert to fraction form
402,595.11/555,588.16 = 221,314.68/x - Step 3: Cross multiply
402,595.11x = 555,588.16 × 221,314.68 - Step 4: Simplify right side
402,595.11x = 122,959,815,842.19 - Step 5: Solve for x
x = 122,959,815,842.19/402,595.11 - Step 6: Final answer
x = 305,418.06
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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.