Finding the Fourth Proportional to 201,798.84, 278,495.04 and 111,154.80
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Solution
The fourth proportional to 201,798.84, 278,495.04 and 111,154.80 is: 153,400.59
Step by Step Solution
- Step 1: Write the proportion equation
201,798.84 : 278,495.04 = 111,154.80 : x - Step 2: Convert to fraction form
201,798.84/278,495.04 = 111,154.80/x - Step 3: Cross multiply
201,798.84x = 278,495.04 × 111,154.80 - Step 4: Simplify right side
201,798.84x = 30,956,060,472.19 - Step 5: Solve for x
x = 30,956,060,472.19/201,798.84 - Step 6: Final answer
x = 153,400.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.