Finding the Fourth Proportional to 190,835.10, 286,252.65 and 155,405.70
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Solution
The fourth proportional to 190,835.10, 286,252.65 and 155,405.70 is: 233,108.55
Step by Step Solution
- Step 1: Write the proportion equation
190,835.10 : 286,252.65 = 155,405.70 : x - Step 2: Convert to fraction form
190,835.10/286,252.65 = 155,405.70/x - Step 3: Cross multiply
190,835.10x = 286,252.65 × 155,405.70 - Step 4: Simplify right side
190,835.10x = 44,485,293,450.11 - Step 5: Solve for x
x = 44,485,293,450.11/190,835.10 - Step 6: Final answer
x = 233,108.55
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1.5x scale
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.