Finding the Fourth Proportional to 432,671.18, 649,068.21 and 133,176.69
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Solution
The fourth proportional to 432,671.18, 649,068.21 and 133,176.69 is: 199,783.95
Step by Step Solution
- Step 1: Write the proportion equation
432,671.18 : 649,068.21 = 133,176.69 : x - Step 2: Convert to fraction form
432,671.18/649,068.21 = 133,176.69/x - Step 3: Cross multiply
432,671.18x = 649,068.21 × 133,176.69 - Step 4: Simplify right side
432,671.18x = 86,440,755,792.02 - Step 5: Solve for x
x = 86,440,755,792.02/432,671.18 - Step 6: Final answer
x = 199,783.95
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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.