Finding the Fourth Proportional to 399,724.08, 551,553.75 and 236,357.88
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Solution
The fourth proportional to 399,724.08, 551,553.75 and 236,357.88 is: 326,135.16
Step by Step Solution
- Step 1: Write the proportion equation
399,724.08 : 551,553.75 = 236,357.88 : x - Step 2: Convert to fraction form
399,724.08/551,553.75 = 236,357.88/x - Step 3: Cross multiply
399,724.08x = 551,553.75 × 236,357.88 - Step 4: Simplify right side
399,724.08x = 130,364,075,056.05 - Step 5: Solve for x
x = 130,364,075,056.05/399,724.08 - Step 6: Final answer
x = 326,135.16
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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.