Finding the Fourth Proportional to 409,866.96, 565,615.26 and 228,579.08
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Solution
The fourth proportional to 409,866.96, 565,615.26 and 228,579.08 is: 315,438.49
Step by Step Solution
- Step 1: Write the proportion equation
409,866.96 : 565,615.26 = 228,579.08 : x - Step 2: Convert to fraction form
409,866.96/565,615.26 = 228,579.08/x - Step 3: Cross multiply
409,866.96x = 565,615.26 × 228,579.08 - Step 4: Simplify right side
409,866.96x = 129,287,815,764.76 - Step 5: Solve for x
x = 129,287,815,764.76/409,866.96 - Step 6: Final answer
x = 315,438.49
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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.