Finding the Fourth Proportional to 389,515.68, 584,338.08 and 136,730.58
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Solution
The fourth proportional to 389,515.68, 584,338.08 and 136,730.58 is: 205,118.53
Step by Step Solution
- Step 1: Write the proportion equation
389,515.68 : 584,338.08 = 136,730.58 : x - Step 2: Convert to fraction form
389,515.68/584,338.08 = 136,730.58/x - Step 3: Cross multiply
389,515.68x = 584,338.08 × 136,730.58 - Step 4: Simplify right side
389,515.68x = 79,896,884,594.49 - Step 5: Solve for x
x = 79,896,884,594.49/389,515.68 - Step 6: Final answer
x = 205,118.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.