Finding the Fourth Proportional to 457,237.68, 630,979.73 and 253,287.97
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Solution
The fourth proportional to 457,237.68, 630,979.73 and 253,287.97 is: 349,532.82
Step by Step Solution
- Step 1: Write the proportion equation
457,237.68 : 630,979.73 = 253,287.97 : x - Step 2: Convert to fraction form
457,237.68/630,979.73 = 253,287.97/x - Step 3: Cross multiply
457,237.68x = 630,979.73 × 253,287.97 - Step 4: Simplify right side
457,237.68x = 159,819,573,978.62 - Step 5: Solve for x
x = 159,819,573,978.62/457,237.68 - Step 6: Final answer
x = 349,532.82
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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.