Finding the Fourth Proportional to 286,953.40, 430,430.10 and 273,175.30
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Solution
The fourth proportional to 286,953.40, 430,430.10 and 273,175.30 is: 409,762.95
Step by Step Solution
- Step 1: Write the proportion equation
286,953.40 : 430,430.10 = 273,175.30 : x - Step 2: Convert to fraction form
286,953.40/430,430.10 = 273,175.30/x - Step 3: Cross multiply
286,953.40x = 430,430.10 × 273,175.30 - Step 4: Simplify right side
286,953.40x = 117,582,871,696.53 - Step 5: Solve for x
x = 117,582,871,696.53/286,953.40 - Step 6: Final answer
x = 409,762.95
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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.