Finding the Fourth Proportional to 319,714.80, 479,395.87 and 130,126.50
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Solution
The fourth proportional to 319,714.80, 479,395.87 and 130,126.50 is: 195,117.98
Step by Step Solution
- Step 1: Write the proportion equation
319,714.80 : 479,395.87 = 130,126.50 : x - Step 2: Convert to fraction form
319,714.80/479,395.87 = 130,126.50/x - Step 3: Cross multiply
319,714.80x = 479,395.87 × 130,126.50 - Step 4: Simplify right side
319,714.80x = 62,382,106,352.24 - Step 5: Solve for x
x = 62,382,106,352.24/319,714.80 - Step 6: Final answer
x = 195,117.98
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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.