Finding the Fourth Proportional to 313,415.14, 470,139.12 and 238,652.54
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Solution
The fourth proportional to 313,415.14, 470,139.12 and 238,652.54 is: 357,991.31
Step by Step Solution
- Step 1: Write the proportion equation
313,415.14 : 470,139.12 = 238,652.54 : x - Step 2: Convert to fraction form
313,415.14/470,139.12 = 238,652.54/x - Step 3: Cross multiply
313,415.14x = 470,139.12 × 238,652.54 - Step 4: Simplify right side
313,415.14x = 112,199,895,141.37 - Step 5: Solve for x
x = 112,199,895,141.37/313,415.14 - Step 6: Final answer
x = 357,991.31
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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.