Finding the Fourth Proportional to 258,252.24, 387,378.36 and 71,263.76
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Solution
The fourth proportional to 258,252.24, 387,378.36 and 71,263.76 is: 106,895.64
Step by Step Solution
- Step 1: Write the proportion equation
258,252.24 : 387,378.36 = 71,263.76 : x - Step 2: Convert to fraction form
258,252.24/387,378.36 = 71,263.76/x - Step 3: Cross multiply
258,252.24x = 387,378.36 × 71,263.76 - Step 4: Simplify right side
258,252.24x = 27,606,038,476.23 - Step 5: Solve for x
x = 27,606,038,476.23/258,252.24 - Step 6: Final answer
x = 106,895.64
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1.5x scale
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.