Finding the Fourth Proportional to 152,414.31, 210,328.99 and 84,431.07
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Solution
The fourth proportional to 152,414.31, 210,328.99 and 84,431.07 is: 116,513.35
Step by Step Solution
- Step 1: Write the proportion equation
152,414.31 : 210,328.99 = 84,431.07 : x - Step 2: Convert to fraction form
152,414.31/210,328.99 = 84,431.07/x - Step 3: Cross multiply
152,414.31x = 210,328.99 × 84,431.07 - Step 4: Simplify right side
152,414.31x = 17,758,301,677.72 - Step 5: Solve for x
x = 17,758,301,677.72/152,414.31 - Step 6: Final answer
x = 116,513.35
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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.