Finding the Fourth Proportional to 319,759.64, 479,686.84 and 106,457.88
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Solution
The fourth proportional to 319,759.64, 479,686.84 and 106,457.88 is: 159,702.59
Step by Step Solution
- Step 1: Write the proportion equation
319,759.64 : 479,686.84 = 106,457.88 : x - Step 2: Convert to fraction form
319,759.64/479,686.84 = 106,457.88/x - Step 3: Cross multiply
319,759.64x = 479,686.84 × 106,457.88 - Step 4: Simplify right side
319,759.64x = 51,066,444,050.30 - Step 5: Solve for x
x = 51,066,444,050.30/319,759.64 - Step 6: Final answer
x = 159,702.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.