Finding the Fourth Proportional to 389,419.68, 537,415.44 and 246,127.68
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Solution
The fourth proportional to 389,419.68, 537,415.44 and 246,127.68 is: 339,666.49
Step by Step Solution
- Step 1: Write the proportion equation
389,419.68 : 537,415.44 = 246,127.68 : x - Step 2: Convert to fraction form
389,419.68/537,415.44 = 246,127.68/x - Step 3: Cross multiply
389,419.68x = 537,415.44 × 246,127.68 - Step 4: Simplify right side
389,419.68x = 132,272,815,443.38 - Step 5: Solve for x
x = 132,272,815,443.38/389,419.68 - Step 6: Final answer
x = 339,666.49
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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.