Finding the Fourth Proportional to 242,697.79, 334,924.50 and 135,274.65
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Solution
The fourth proportional to 242,697.79, 334,924.50 and 135,274.65 is: 186,679.88
Step by Step Solution
- Step 1: Write the proportion equation
242,697.79 : 334,924.50 = 135,274.65 : x - Step 2: Convert to fraction form
242,697.79/334,924.50 = 135,274.65/x - Step 3: Cross multiply
242,697.79x = 334,924.50 × 135,274.65 - Step 4: Simplify right side
242,697.79x = 45,306,794,513.93 - Step 5: Solve for x
x = 45,306,794,513.93/242,697.79 - Step 6: Final answer
x = 186,679.88
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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.