Finding the Fourth Proportional to 402,699.14, 555,735.34 and 218,950.07
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Solution
The fourth proportional to 402,699.14, 555,735.34 and 218,950.07 is: 302,156.82
Step by Step Solution
- Step 1: Write the proportion equation
402,699.14 : 555,735.34 = 218,950.07 : x - Step 2: Convert to fraction form
402,699.14/555,735.34 = 218,950.07/x - Step 3: Cross multiply
402,699.14x = 555,735.34 × 218,950.07 - Step 4: Simplify right side
402,699.14x = 121,678,291,594.47 - Step 5: Solve for x
x = 121,678,291,594.47/402,699.14 - Step 6: Final answer
x = 302,156.82
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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.