Finding the Fourth Proportional to 401,712.57, 602,148.36 and 135,381.06
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Solution
The fourth proportional to 401,712.57, 602,148.36 and 135,381.06 is: 202,929.88
Step by Step Solution
- Step 1: Write the proportion equation
401,712.57 : 602,148.36 = 135,381.06 : x - Step 2: Convert to fraction form
401,712.57/602,148.36 = 135,381.06/x - Step 3: Cross multiply
401,712.57x = 602,148.36 × 135,381.06 - Step 4: Simplify right side
401,712.57x = 81,519,483,254.06 - Step 5: Solve for x
x = 81,519,483,254.06/401,712.57 - Step 6: Final answer
x = 202,929.88
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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.