Finding the Fourth Proportional to 367,981.13, 551,955.12 and 128,264.06
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Solution
The fourth proportional to 367,981.13, 551,955.12 and 128,264.06 is: 192,390.31
Step by Step Solution
- Step 1: Write the proportion equation
367,981.13 : 551,955.12 = 128,264.06 : x - Step 2: Convert to fraction form
367,981.13/551,955.12 = 128,264.06/x - Step 3: Cross multiply
367,981.13x = 551,955.12 × 128,264.06 - Step 4: Simplify right side
367,981.13x = 70,796,004,628.99 - Step 5: Solve for x
x = 70,796,004,628.99/367,981.13 - Step 6: Final answer
x = 192,390.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.