Finding the Fourth Proportional to 318,534.95, 477,470.28 and 129,126.07
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Solution
The fourth proportional to 318,534.95, 477,470.28 and 129,126.07 is: 193,554.46
Step by Step Solution
- Step 1: Write the proportion equation
318,534.95 : 477,470.28 = 129,126.07 : x - Step 2: Convert to fraction form
318,534.95/477,470.28 = 129,126.07/x - Step 3: Cross multiply
318,534.95x = 477,470.28 × 129,126.07 - Step 4: Simplify right side
318,534.95x = 61,653,860,152.57 - Step 5: Solve for x
x = 61,653,860,152.57/318,534.95 - Step 6: Final answer
x = 193,554.46
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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.