Finding the Fourth Proportional to 457,129.62, 630,840.69 and 266,274.18
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Solution
The fourth proportional to 457,129.62, 630,840.69 and 266,274.18 is: 367,459.43
Step by Step Solution
- Step 1: Write the proportion equation
457,129.62 : 630,840.69 = 266,274.18 : x - Step 2: Convert to fraction form
457,129.62/630,840.69 = 266,274.18/x - Step 3: Cross multiply
457,129.62x = 630,840.69 × 266,274.18 - Step 4: Simplify right side
457,129.62x = 167,976,587,440.38 - Step 5: Solve for x
x = 167,976,587,440.38/457,129.62 - Step 6: Final answer
x = 367,459.43
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1.5x scale
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.