Finding the Fourth Proportional to 280,816.08, 387,526.38 and 153,491.68
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Solution
The fourth proportional to 280,816.08, 387,526.38 and 153,491.68 is: 211,818.62
Step by Step Solution
- Step 1: Write the proportion equation
280,816.08 : 387,526.38 = 153,491.68 : x - Step 2: Convert to fraction form
280,816.08/387,526.38 = 153,491.68/x - Step 3: Cross multiply
280,816.08x = 387,526.38 × 153,491.68 - Step 4: Simplify right side
280,816.08x = 59,482,075,110.52 - Step 5: Solve for x
x = 59,482,075,110.52/280,816.08 - Step 6: Final answer
x = 211,818.62
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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.