Finding the Fourth Proportional to 512,122.93, 767,750.63 and 212,416.45
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Solution
The fourth proportional to 512,122.93, 767,750.63 and 212,416.45 is: 318,444.76
Step by Step Solution
- Step 1: Write the proportion equation
512,122.93 : 767,750.63 = 212,416.45 : x - Step 2: Convert to fraction form
512,122.93/767,750.63 = 212,416.45/x - Step 3: Cross multiply
512,122.93x = 767,750.63 × 212,416.45 - Step 4: Simplify right side
512,122.93x = 163,082,860,328.41 - Step 5: Solve for x
x = 163,082,860,328.41/512,122.93 - Step 6: Final answer
x = 318,444.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.