Finding the Fourth Proportional to 197,154.90, 272,073.47 and 112,271.99
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Solution
The fourth proportional to 197,154.90, 272,073.47 and 112,271.99 is: 154,935.17
Step by Step Solution
- Step 1: Write the proportion equation
197,154.90 : 272,073.47 = 112,271.99 : x - Step 2: Convert to fraction form
197,154.90/272,073.47 = 112,271.99/x - Step 3: Cross multiply
197,154.90x = 272,073.47 × 112,271.99 - Step 4: Simplify right side
197,154.90x = 30,546,227,981.38 - Step 5: Solve for x
x = 30,546,227,981.38/197,154.90 - Step 6: Final answer
x = 154,935.17
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1.5x scale
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.