Finding the Fourth Proportional to 183,815.42, 253,689.06 and 103,242.94
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Solution
The fourth proportional to 183,815.42, 253,689.06 and 103,242.94 is: 142,488.61
Step by Step Solution
- Step 1: Write the proportion equation
183,815.42 : 253,689.06 = 103,242.94 : x - Step 2: Convert to fraction form
183,815.42/253,689.06 = 103,242.94/x - Step 3: Cross multiply
183,815.42x = 253,689.06 × 103,242.94 - Step 4: Simplify right side
183,815.42x = 26,191,604,400.24 - Step 5: Solve for x
x = 26,191,604,400.24/183,815.42 - Step 6: Final answer
x = 142,488.61
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.