Finding the Fourth Proportional to 388,769.09, 536,506.68 and 216,682.26
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Solution
The fourth proportional to 388,769.09, 536,506.68 and 216,682.26 is: 299,024.50
Step by Step Solution
- Step 1: Write the proportion equation
388,769.09 : 536,506.68 = 216,682.26 : x - Step 2: Convert to fraction form
388,769.09/536,506.68 = 216,682.26/x - Step 3: Cross multiply
388,769.09x = 536,506.68 × 216,682.26 - Step 4: Simplify right side
388,769.09x = 116,251,481,746.01 - Step 5: Solve for x
x = 116,251,481,746.01/388,769.09 - Step 6: Final answer
x = 299,024.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.