Finding the Fourth Proportional to 201,721.70, 302,582.55 and 103,417.70
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Solution
The fourth proportional to 201,721.70, 302,582.55 and 103,417.70 is: 155,126.55
Step by Step Solution
- Step 1: Write the proportion equation
201,721.70 : 302,582.55 = 103,417.70 : x - Step 2: Convert to fraction form
201,721.70/302,582.55 = 103,417.70/x - Step 3: Cross multiply
201,721.70x = 302,582.55 × 103,417.70 - Step 4: Simplify right side
201,721.70x = 31,292,391,381.14 - Step 5: Solve for x
x = 31,292,391,381.14/201,721.70 - Step 6: Final answer
x = 155,126.55
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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.