Finding the Fourth Proportional to 430,116.99, 644,772.48 and 145,608.54
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Solution
The fourth proportional to 430,116.99, 644,772.48 and 145,608.54 is: 218,276.38
Step by Step Solution
- Step 1: Write the proportion equation
430,116.99 : 644,772.48 = 145,608.54 : x - Step 2: Convert to fraction form
430,116.99/644,772.48 = 145,608.54/x - Step 3: Cross multiply
430,116.99x = 644,772.48 × 145,608.54 - Step 4: Simplify right side
430,116.99x = 93,884,379,444.98 - Step 5: Solve for x
x = 93,884,379,444.98/430,116.99 - Step 6: Final answer
x = 218,276.38
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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.