Finding the Fourth Proportional to 318,423.31, 439,455.18 and 237,710.68
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Solution
The fourth proportional to 318,423.31, 439,455.18 and 237,710.68 is: 328,063.89
Step by Step Solution
- Step 1: Write the proportion equation
318,423.31 : 439,455.18 = 237,710.68 : x - Step 2: Convert to fraction form
318,423.31/439,455.18 = 237,710.68/x - Step 3: Cross multiply
318,423.31x = 439,455.18 × 237,710.68 - Step 4: Simplify right side
318,423.31x = 104,463,189,667.32 - Step 5: Solve for x
x = 104,463,189,667.32/318,423.31 - Step 6: Final answer
x = 328,063.89
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1.5x scale
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.