Finding the Fourth Proportional to 392,767.80, 589,151.70 and 97,279.80
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Solution
The fourth proportional to 392,767.80, 589,151.70 and 97,279.80 is: 145,919.70
Step by Step Solution
- Step 1: Write the proportion equation
392,767.80 : 589,151.70 = 97,279.80 : x - Step 2: Convert to fraction form
392,767.80/589,151.70 = 97,279.80/x - Step 3: Cross multiply
392,767.80x = 589,151.70 × 97,279.80 - Step 4: Simplify right side
392,767.80x = 57,312,559,545.66 - Step 5: Solve for x
x = 57,312,559,545.66/392,767.80 - Step 6: Final answer
x = 145,919.70
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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.