Finding the Fourth Proportional to 290,688.24, 401,345.48 and 259,965.88
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Solution
The fourth proportional to 290,688.24, 401,345.48 and 259,965.88 is: 358,927.94
Step by Step Solution
- Step 1: Write the proportion equation
290,688.24 : 401,345.48 = 259,965.88 : x - Step 2: Convert to fraction form
290,688.24/401,345.48 = 259,965.88/x - Step 3: Cross multiply
290,688.24x = 401,345.48 × 259,965.88 - Step 4: Simplify right side
290,688.24x = 104,336,130,892.22 - Step 5: Solve for x
x = 104,336,130,892.22/290,688.24 - Step 6: Final answer
x = 358,927.94
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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.