Finding the Fourth Proportional to 313,980.76, 470,987.40 and 103,635.08
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Solution
The fourth proportional to 313,980.76, 470,987.40 and 103,635.08 is: 155,457.99
Step by Step Solution
- Step 1: Write the proportion equation
313,980.76 : 470,987.40 = 103,635.08 : x - Step 2: Convert to fraction form
313,980.76/470,987.40 = 103,635.08/x - Step 3: Cross multiply
313,980.76x = 470,987.40 × 103,635.08 - Step 4: Simplify right side
313,980.76x = 48,810,816,877.99 - Step 5: Solve for x
x = 48,810,816,877.99/313,980.76 - Step 6: Final answer
x = 155,457.99
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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.