Finding the Fourth Proportional to 249,823.20, 374,784.09 and 72,331.68
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Solution
The fourth proportional to 249,823.20, 374,784.09 and 72,331.68 is: 108,511.79
Step by Step Solution
- Step 1: Write the proportion equation
249,823.20 : 374,784.09 = 72,331.68 : x - Step 2: Convert to fraction form
249,823.20/374,784.09 = 72,331.68/x - Step 3: Cross multiply
249,823.20x = 374,784.09 × 72,331.68 - Step 4: Simplify right side
249,823.20x = 27,108,762,866.97 - Step 5: Solve for x
x = 27,108,762,866.97/249,823.20 - Step 6: Final answer
x = 108,511.79
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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.