Finding the Fourth Proportional to 391,201.80, 586,802.70 and 201,661.80
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Solution
The fourth proportional to 391,201.80, 586,802.70 and 201,661.80 is: 302,492.70
Step by Step Solution
- Step 1: Write the proportion equation
391,201.80 : 586,802.70 = 201,661.80 : x - Step 2: Convert to fraction form
391,201.80/586,802.70 = 201,661.80/x - Step 3: Cross multiply
391,201.80x = 586,802.70 × 201,661.80 - Step 4: Simplify right side
391,201.80x = 118,335,688,726.86 - Step 5: Solve for x
x = 118,335,688,726.86/391,201.80 - Step 6: Final answer
x = 302,492.70
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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.