Finding the Fourth Proportional to 368,894.61, 509,076.36 and 207,752.40
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Solution
The fourth proportional to 368,894.61, 509,076.36 and 207,752.40 is: 286,699.32
Step by Step Solution
- Step 1: Write the proportion equation
368,894.61 : 509,076.36 = 207,752.40 : x - Step 2: Convert to fraction form
368,894.61/509,076.36 = 207,752.40/x - Step 3: Cross multiply
368,894.61x = 509,076.36 × 207,752.40 - Step 4: Simplify right side
368,894.61x = 105,761,835,573.26 - Step 5: Solve for x
x = 105,761,835,573.26/368,894.61 - Step 6: Final answer
x = 286,699.32
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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.