Finding the Fourth Proportional to 197,784.12, 272,943.40 and 107,140.08
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Solution
The fourth proportional to 197,784.12, 272,943.40 and 107,140.08 is: 147,854.02
Step by Step Solution
- Step 1: Write the proportion equation
197,784.12 : 272,943.40 = 107,140.08 : x - Step 2: Convert to fraction form
197,784.12/272,943.40 = 107,140.08/x - Step 3: Cross multiply
197,784.12x = 272,943.40 × 107,140.08 - Step 4: Simplify right side
197,784.12x = 29,243,177,711.47 - Step 5: Solve for x
x = 29,243,177,711.47/197,784.12 - Step 6: Final answer
x = 147,854.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.