Finding the Fourth Proportional to 245,723.80, 368,585.70 and 121,307.80
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Solution
The fourth proportional to 245,723.80, 368,585.70 and 121,307.80 is: 181,961.70
Step by Step Solution
- Step 1: Write the proportion equation
245,723.80 : 368,585.70 = 121,307.80 : x - Step 2: Convert to fraction form
245,723.80/368,585.70 = 121,307.80/x - Step 3: Cross multiply
245,723.80x = 368,585.70 × 121,307.80 - Step 4: Simplify right side
245,723.80x = 44,712,320,378.46 - Step 5: Solve for x
x = 44,712,320,378.46/245,723.80 - Step 6: Final answer
x = 181,961.70
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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.