Finding the Fourth Proportional to 457,686.26, 631,644.30 and 253,801.08
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Solution
The fourth proportional to 457,686.26, 631,644.30 and 253,801.08 is: 350,266.15
Step by Step Solution
- Step 1: Write the proportion equation
457,686.26 : 631,644.30 = 253,801.08 : x - Step 2: Convert to fraction form
457,686.26/631,644.30 = 253,801.08/x - Step 3: Cross multiply
457,686.26x = 631,644.30 × 253,801.08 - Step 4: Simplify right side
457,686.26x = 160,312,005,515.84 - Step 5: Solve for x
x = 160,312,005,515.84/457,686.26 - Step 6: Final answer
x = 350,266.15
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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.