Finding the Fourth Proportional to 293,637.78, 440,398.35 and 143,813.70
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Solution
The fourth proportional to 293,637.78, 440,398.35 and 143,813.70 is: 215,691.99
Step by Step Solution
- Step 1: Write the proportion equation
293,637.78 : 440,398.35 = 143,813.70 : x - Step 2: Convert to fraction form
293,637.78/440,398.35 = 143,813.70/x - Step 3: Cross multiply
293,637.78x = 440,398.35 × 143,813.70 - Step 4: Simplify right side
293,637.78x = 63,335,316,187.40 - Step 5: Solve for x
x = 63,335,316,187.40/293,637.78 - Step 6: Final answer
x = 215,691.99
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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.