Finding the Fourth Proportional to 318,484.08, 439,578.72 and 249,436.08
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Solution
The fourth proportional to 318,484.08, 439,578.72 and 249,436.08 is: 344,277.15
Step by Step Solution
- Step 1: Write the proportion equation
318,484.08 : 439,578.72 = 249,436.08 : x - Step 2: Convert to fraction form
318,484.08/439,578.72 = 249,436.08/x - Step 3: Cross multiply
318,484.08x = 439,578.72 × 249,436.08 - Step 4: Simplify right side
318,484.08x = 109,646,792,768.22 - Step 5: Solve for x
x = 109,646,792,768.22/318,484.08 - Step 6: Final answer
x = 344,277.15
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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.