Finding the Fourth Proportional to 243,347.02, 335,815.35 and 135,918.58
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Solution
The fourth proportional to 243,347.02, 335,815.35 and 135,918.58 is: 187,565.66
Step by Step Solution
- Step 1: Write the proportion equation
243,347.02 : 335,815.35 = 135,918.58 : x - Step 2: Convert to fraction form
243,347.02/335,815.35 = 135,918.58/x - Step 3: Cross multiply
243,347.02x = 335,815.35 × 135,918.58 - Step 4: Simplify right side
243,347.02x = 45,643,545,514.20 - Step 5: Solve for x
x = 45,643,545,514.20/243,347.02 - Step 6: Final answer
x = 187,565.66
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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.