Finding the Fourth Proportional to 316,759.14, 475,134.68 and 76,875.08
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Solution
The fourth proportional to 316,759.14, 475,134.68 and 76,875.08 is: 115,311.63
Step by Step Solution
- Step 1: Write the proportion equation
316,759.14 : 475,134.68 = 76,875.08 : x - Step 2: Convert to fraction form
316,759.14/475,134.68 = 76,875.08/x - Step 3: Cross multiply
316,759.14x = 475,134.68 × 76,875.08 - Step 4: Simplify right side
316,759.14x = 36,526,013,775.73 - Step 5: Solve for x
x = 36,526,013,775.73/316,759.14 - Step 6: Final answer
x = 115,311.63
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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.