Finding the Fourth Proportional to 457,271.30, 631,027.58 and 253,321.80
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Solution
The fourth proportional to 457,271.30, 631,027.58 and 253,321.80 is: 349,580.31
Step by Step Solution
- Step 1: Write the proportion equation
457,271.30 : 631,027.58 = 253,321.80 : x - Step 2: Convert to fraction form
457,271.30/631,027.58 = 253,321.80/x - Step 3: Cross multiply
457,271.30x = 631,027.58 × 253,321.80 - Step 4: Simplify right side
457,271.30x = 159,853,042,415.24 - Step 5: Solve for x
x = 159,853,042,415.24/457,271.30 - Step 6: Final answer
x = 349,580.31
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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.