Finding the Fourth Proportional to 152,215.12, 210,053.73 and 84,232.05
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Solution
The fourth proportional to 152,215.12, 210,053.73 and 84,232.05 is: 116,238.49
Step by Step Solution
- Step 1: Write the proportion equation
152,215.12 : 210,053.73 = 84,232.05 : x - Step 2: Convert to fraction form
152,215.12/210,053.73 = 84,232.05/x - Step 3: Cross multiply
152,215.12x = 210,053.73 × 84,232.05 - Step 4: Simplify right side
152,215.12x = 17,693,256,288.05 - Step 5: Solve for x
x = 17,693,256,288.05/152,215.12 - Step 6: Final answer
x = 116,238.49
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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.