Finding the Fourth Proportional to 347,108.49, 478,931.94 and 219,710.07
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Solution
The fourth proportional to 347,108.49, 478,931.94 and 219,710.07 is: 303,150.67
Step by Step Solution
- Step 1: Write the proportion equation
347,108.49 : 478,931.94 = 219,710.07 : x - Step 2: Convert to fraction form
347,108.49/478,931.94 = 219,710.07/x - Step 3: Cross multiply
347,108.49x = 478,931.94 × 219,710.07 - Step 4: Simplify right side
347,108.49x = 105,226,170,062.64 - Step 5: Solve for x
x = 105,226,170,062.64/347,108.49 - Step 6: Final answer
x = 303,150.67
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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.