Finding the Fourth Proportional to 207,424.80, 286,312.32 and 135,691.20
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Solution
The fourth proportional to 207,424.80, 286,312.32 and 135,691.20 is: 187,297.09
Step by Step Solution
- Step 1: Write the proportion equation
207,424.80 : 286,312.32 = 135,691.20 : x - Step 2: Convert to fraction form
207,424.80/286,312.32 = 135,691.20/x - Step 3: Cross multiply
207,424.80x = 286,312.32 × 135,691.20 - Step 4: Simplify right side
207,424.80x = 38,850,062,275.58 - Step 5: Solve for x
x = 38,850,062,275.58/207,424.80 - Step 6: Final answer
x = 187,297.09
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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.