Finding the Fourth Proportional to 389,220.68, 537,124.56 and 210,372.68
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Solution
The fourth proportional to 389,220.68, 537,124.56 and 210,372.68 is: 290,314.31
Step by Step Solution
- Step 1: Write the proportion equation
389,220.68 : 537,124.56 = 210,372.68 : x - Step 2: Convert to fraction form
389,220.68/537,124.56 = 210,372.68/x - Step 3: Cross multiply
389,220.68x = 537,124.56 × 210,372.68 - Step 4: Simplify right side
389,220.68x = 112,996,333,181.02 - Step 5: Solve for x
x = 112,996,333,181.02/389,220.68 - Step 6: Final answer
x = 290,314.31
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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.