Finding the Fourth Proportional to 286,678.38, 427,598.75 and 248,941.70
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Solution
The fourth proportional to 286,678.38, 427,598.75 and 248,941.70 is: 371,312.12
Step by Step Solution
- Step 1: Write the proportion equation
286,678.38 : 427,598.75 = 248,941.70 : x - Step 2: Convert to fraction form
286,678.38/427,598.75 = 248,941.70/x - Step 3: Cross multiply
286,678.38x = 427,598.75 × 248,941.70 - Step 4: Simplify right side
286,678.38x = 106,447,158,227.24 - Step 5: Solve for x
x = 106,447,158,227.24/286,678.38 - Step 6: Final answer
x = 371,312.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.