Finding the Fourth Proportional to 543,167.64, 749,661.44 and 316,813.12
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Solution
The fourth proportional to 543,167.64, 749,661.44 and 316,813.12 is: 437,254.66
Step by Step Solution
- Step 1: Write the proportion equation
543,167.64 : 749,661.44 = 316,813.12 : x - Step 2: Convert to fraction form
543,167.64/749,661.44 = 316,813.12/x - Step 3: Cross multiply
543,167.64x = 749,661.44 × 316,813.12 - Step 4: Simplify right side
543,167.64x = 237,502,579,750.09 - Step 5: Solve for x
x = 237,502,579,750.09/543,167.64 - Step 6: Final answer
x = 437,254.66
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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.