Finding the Fourth Proportional to 312,131.80, 468,197.70 and 249,923.80
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Solution
The fourth proportional to 312,131.80, 468,197.70 and 249,923.80 is: 374,885.70
Step by Step Solution
- Step 1: Write the proportion equation
312,131.80 : 468,197.70 = 249,923.80 : x - Step 2: Convert to fraction form
312,131.80/468,197.70 = 249,923.80/x - Step 3: Cross multiply
312,131.80x = 468,197.70 × 249,923.80 - Step 4: Simplify right side
312,131.80x = 117,013,748,335.26 - Step 5: Solve for x
x = 117,013,748,335.26/312,131.80 - Step 6: Final answer
x = 374,885.70
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1.5x scale
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.