Finding the Fourth Proportional to 318,724.24, 439,740.08 and 180,880.32
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Solution
The fourth proportional to 318,724.24, 439,740.08 and 180,880.32 is: 249,558.45
Step by Step Solution
- Step 1: Write the proportion equation
318,724.24 : 439,740.08 = 180,880.32 : x - Step 2: Convert to fraction form
318,724.24/439,740.08 = 180,880.32/x - Step 3: Cross multiply
318,724.24x = 439,740.08 × 180,880.32 - Step 4: Simplify right side
318,724.24x = 79,540,326,387.23 - Step 5: Solve for x
x = 79,540,326,387.23/318,724.24 - Step 6: Final answer
x = 249,558.45
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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.