Finding the Fourth Proportional to 372,429.53, 513,910.98 and 219,457.79
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Solution
The fourth proportional to 372,429.53, 513,910.98 and 219,457.79 is: 302,827.14
Step by Step Solution
- Step 1: Write the proportion equation
372,429.53 : 513,910.98 = 219,457.79 : x - Step 2: Convert to fraction form
372,429.53/513,910.98 = 219,457.79/x - Step 3: Cross multiply
372,429.53x = 513,910.98 × 219,457.79 - Step 4: Simplify right side
372,429.53x = 112,781,767,285.15 - Step 5: Solve for x
x = 112,781,767,285.15/372,429.53 - Step 6: Final answer
x = 302,827.14
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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.