Finding the Fourth Proportional to 409,868.17, 565,631.36 and 228,587.74
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Solution
The fourth proportional to 409,868.17, 565,631.36 and 228,587.74 is: 315,458.49
Step by Step Solution
- Step 1: Write the proportion equation
409,868.17 : 565,631.36 = 228,587.74 : x - Step 2: Convert to fraction form
409,868.17/565,631.36 = 228,587.74/x - Step 3: Cross multiply
409,868.17x = 565,631.36 × 228,587.74 - Step 4: Simplify right side
409,868.17x = 129,296,394,255.53 - Step 5: Solve for x
x = 129,296,394,255.53/409,868.17 - Step 6: Final answer
x = 315,458.49
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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.