Finding the Fourth Proportional to 343,988.08, 515,963.89 and 107,303.65
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Solution
The fourth proportional to 343,988.08, 515,963.89 and 107,303.65 is: 160,949.79
Step by Step Solution
- Step 1: Write the proportion equation
343,988.08 : 515,963.89 = 107,303.65 : x - Step 2: Convert to fraction form
343,988.08/515,963.89 = 107,303.65/x - Step 3: Cross multiply
343,988.08x = 515,963.89 × 107,303.65 - Step 4: Simplify right side
343,988.08x = 55,364,808,665.20 - Step 5: Solve for x
x = 55,364,808,665.20/343,988.08 - Step 6: Final answer
x = 160,949.79
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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.