Finding the Fourth Proportional to 353,663.15, 487,910.93 and 217,656.05
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Solution
The fourth proportional to 353,663.15, 487,910.93 and 217,656.05 is: 300,276.59
Step by Step Solution
- Step 1: Write the proportion equation
353,663.15 : 487,910.93 = 217,656.05 : x - Step 2: Convert to fraction form
353,663.15/487,910.93 = 217,656.05/x - Step 3: Cross multiply
353,663.15x = 487,910.93 × 217,656.05 - Step 4: Simplify right side
353,663.15x = 106,196,762,247.79 - Step 5: Solve for x
x = 106,196,762,247.79/353,663.15 - Step 6: Final answer
x = 300,276.59
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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.