Finding the Fourth Proportional to 472,215.42, 651,638.30 and 257,350.87
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Solution
The fourth proportional to 472,215.42, 651,638.30 and 257,350.87 is: 355,133.85
Step by Step Solution
- Step 1: Write the proportion equation
472,215.42 : 651,638.30 = 257,350.87 : x - Step 2: Convert to fraction form
472,215.42/651,638.30 = 257,350.87/x - Step 3: Cross multiply
472,215.42x = 651,638.30 × 257,350.87 - Step 4: Simplify right side
472,215.42x = 167,699,680,172.13 - Step 5: Solve for x
x = 167,699,680,172.13/472,215.42 - Step 6: Final answer
x = 355,133.85
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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.