Finding the Fourth Proportional to 430,190.48, 644,704.44 and 163,805.68
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Solution
The fourth proportional to 430,190.48, 644,704.44 and 163,805.68 is: 245,487.18
Step by Step Solution
- Step 1: Write the proportion equation
430,190.48 : 644,704.44 = 163,805.68 : x - Step 2: Convert to fraction form
430,190.48/644,704.44 = 163,805.68/x - Step 3: Cross multiply
430,190.48x = 644,704.44 × 163,805.68 - Step 4: Simplify right side
430,190.48x = 105,606,248,374.19 - Step 5: Solve for x
x = 105,606,248,374.19/430,190.48 - Step 6: Final answer
x = 245,487.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.