Finding the Fourth Proportional to 383,907.38, 575,971.74 and 117,707.18
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Solution
The fourth proportional to 383,907.38, 575,971.74 and 117,707.18 is: 176,594.70
Step by Step Solution
- Step 1: Write the proportion equation
383,907.38 : 575,971.74 = 117,707.18 : x - Step 2: Convert to fraction form
383,907.38/575,971.74 = 117,707.18/x - Step 3: Cross multiply
383,907.38x = 575,971.74 × 117,707.18 - Step 4: Simplify right side
383,907.38x = 67,796,009,275.09 - Step 5: Solve for x
x = 67,796,009,275.09/383,907.38 - Step 6: Final answer
x = 176,594.70
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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.