Finding the Fourth Proportional to 306,743.13, 423,157.14 and 197,818.74
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Solution
The fourth proportional to 306,743.13, 423,157.14 and 197,818.74 is: 272,894.17
Step by Step Solution
- Step 1: Write the proportion equation
306,743.13 : 423,157.14 = 197,818.74 : x - Step 2: Convert to fraction form
306,743.13/423,157.14 = 197,818.74/x - Step 3: Cross multiply
306,743.13x = 423,157.14 × 197,818.74 - Step 4: Simplify right side
306,743.13x = 83,708,412,256.80 - Step 5: Solve for x
x = 83,708,412,256.80/306,743.13 - Step 6: Final answer
x = 272,894.17
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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.