Finding the Fourth Proportional to 307,419.08, 424,166.09 and 186,557.63
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Solution
The fourth proportional to 307,419.08, 424,166.09 and 186,557.63 is: 257,405.68
Step by Step Solution
- Step 1: Write the proportion equation
307,419.08 : 424,166.09 = 186,557.63 : x - Step 2: Convert to fraction form
307,419.08/424,166.09 = 186,557.63/x - Step 3: Cross multiply
307,419.08x = 424,166.09 × 186,557.63 - Step 4: Simplify right side
307,419.08x = 79,131,417,423.15 - Step 5: Solve for x
x = 79,131,417,423.15/307,419.08 - Step 6: Final answer
x = 257,405.68
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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.