Finding the Fourth Proportional to 320,893.62, 442,816.34 and 175,671.55
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Solution
The fourth proportional to 320,893.62, 442,816.34 and 175,671.55 is: 242,417.51
Step by Step Solution
- Step 1: Write the proportion equation
320,893.62 : 442,816.34 = 175,671.55 : x - Step 2: Convert to fraction form
320,893.62/442,816.34 = 175,671.55/x - Step 3: Cross multiply
320,893.62x = 442,816.34 × 175,671.55 - Step 4: Simplify right side
320,893.62x = 77,790,232,813.13 - Step 5: Solve for x
x = 77,790,232,813.13/320,893.62 - Step 6: Final answer
x = 242,417.51
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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.