Finding the Fourth Proportional to 493,885.63, 740,744.61 and 138,816.19
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Solution
The fourth proportional to 493,885.63, 740,744.61 and 138,816.19 is: 208,200.72
Step by Step Solution
- Step 1: Write the proportion equation
493,885.63 : 740,744.61 = 138,816.19 : x - Step 2: Convert to fraction form
493,885.63/740,744.61 = 138,816.19/x - Step 3: Cross multiply
493,885.63x = 740,744.61 × 138,816.19 - Step 4: Simplify right side
493,885.63x = 102,827,344,523.24 - Step 5: Solve for x
x = 102,827,344,523.24/493,885.63 - Step 6: Final answer
x = 208,200.72
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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.