Finding the Fourth Proportional to 438,963.74, 657,937.34 and 201,808.70
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Solution
The fourth proportional to 438,963.74, 657,937.34 and 201,808.70 is: 302,479.38
Step by Step Solution
- Step 1: Write the proportion equation
438,963.74 : 657,937.34 = 201,808.70 : x - Step 2: Convert to fraction form
438,963.74/657,937.34 = 201,808.70/x - Step 3: Cross multiply
438,963.74x = 657,937.34 × 201,808.70 - Step 4: Simplify right side
438,963.74x = 132,777,478,257.82 - Step 5: Solve for x
x = 132,777,478,257.82/438,963.74 - Step 6: Final answer
x = 302,479.38
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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.