Finding the Fourth Proportional to 374,678.68, 516,568.44 and 272,720.76
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Solution
The fourth proportional to 374,678.68, 516,568.44 and 272,720.76 is: 375,999.34
Step by Step Solution
- Step 1: Write the proportion equation
374,678.68 : 516,568.44 = 272,720.76 : x - Step 2: Convert to fraction form
374,678.68/516,568.44 = 272,720.76/x - Step 3: Cross multiply
374,678.68x = 516,568.44 × 272,720.76 - Step 4: Simplify right side
374,678.68x = 140,878,937,548.81 - Step 5: Solve for x
x = 140,878,937,548.81/374,678.68 - Step 6: Final answer
x = 375,999.34
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1.5x scale
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.