Finding the Fourth Proportional to 442,970.13, 664,159.95 and 215,205.02
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Solution
The fourth proportional to 442,970.13, 664,159.95 and 215,205.02 is: 322,664.09
Step by Step Solution
- Step 1: Write the proportion equation
442,970.13 : 664,159.95 = 215,205.02 : x - Step 2: Convert to fraction form
442,970.13/664,159.95 = 215,205.02/x - Step 3: Cross multiply
442,970.13x = 664,159.95 × 215,205.02 - Step 4: Simplify right side
442,970.13x = 142,930,554,492.75 - Step 5: Solve for x
x = 142,930,554,492.75/442,970.13 - Step 6: Final answer
x = 322,664.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.