Finding the Fourth Proportional to 380,278.64, 524,813.67 and 216,938.74
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Solution
The fourth proportional to 380,278.64, 524,813.67 and 216,938.74 is: 299,392.09
Step by Step Solution
- Step 1: Write the proportion equation
380,278.64 : 524,813.67 = 216,938.74 : x - Step 2: Convert to fraction form
380,278.64/524,813.67 = 216,938.74/x - Step 3: Cross multiply
380,278.64x = 524,813.67 × 216,938.74 - Step 4: Simplify right side
380,278.64x = 113,852,418,062.75 - Step 5: Solve for x
x = 113,852,418,062.75/380,278.64 - Step 6: Final answer
x = 299,392.09
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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.