Finding the Fourth Proportional to 318,485.08, 439,580.10 and 249,437.08
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Solution
The fourth proportional to 318,485.08, 439,580.10 and 249,437.08 is: 344,278.53
Step by Step Solution
- Step 1: Write the proportion equation
318,485.08 : 439,580.10 = 249,437.08 : x - Step 2: Convert to fraction form
318,485.08/439,580.10 = 249,437.08/x - Step 3: Cross multiply
318,485.08x = 439,580.10 × 249,437.08 - Step 4: Simplify right side
318,485.08x = 109,647,576,570.11 - Step 5: Solve for x
x = 109,647,576,570.11/318,485.08 - Step 6: Final answer
x = 344,278.53
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1.5x scale
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.