Finding the Fourth Proportional to 357,130.98, 535,696.47 and 278,304.21
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Solution
The fourth proportional to 357,130.98, 535,696.47 and 278,304.21 is: 417,456.32
Step by Step Solution
- Step 1: Write the proportion equation
357,130.98 : 535,696.47 = 278,304.21 : x - Step 2: Convert to fraction form
357,130.98/535,696.47 = 278,304.21/x - Step 3: Cross multiply
357,130.98x = 535,696.47 × 278,304.21 - Step 4: Simplify right side
357,130.98x = 149,086,582,883.14 - Step 5: Solve for x
x = 149,086,582,883.14/357,130.98 - Step 6: Final answer
x = 417,456.32
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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.