Finding the Fourth Proportional to 302,937.98, 454,405.58 and 78,279.31
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Solution
The fourth proportional to 302,937.98, 454,405.58 and 78,279.31 is: 117,418.61
Step by Step Solution
- Step 1: Write the proportion equation
302,937.98 : 454,405.58 = 78,279.31 : x - Step 2: Convert to fraction form
302,937.98/454,405.58 = 78,279.31/x - Step 3: Cross multiply
302,937.98x = 454,405.58 × 78,279.31 - Step 4: Simplify right side
302,937.98x = 35,570,555,732.71 - Step 5: Solve for x
x = 35,570,555,732.71/302,937.98 - Step 6: Final answer
x = 117,418.61
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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.