Finding the Fourth Proportional to 185,574.70, 278,268.90 and 90,811.99
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Solution
The fourth proportional to 185,574.70, 278,268.90 and 90,811.99 is: 136,172.40
Step by Step Solution
- Step 1: Write the proportion equation
185,574.70 : 278,268.90 = 90,811.99 : x - Step 2: Convert to fraction form
185,574.70/278,268.90 = 90,811.99/x - Step 3: Cross multiply
185,574.70x = 278,268.90 × 90,811.99 - Step 4: Simplify right side
185,574.70x = 25,270,152,564.11 - Step 5: Solve for x
x = 25,270,152,564.11/185,574.70 - Step 6: Final answer
x = 136,172.40
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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.