Finding the Fourth Proportional to 288,305.15, 397,858.73 and 157,482.91
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Solution
The fourth proportional to 288,305.15, 397,858.73 and 157,482.91 is: 217,325.12
Step by Step Solution
- Step 1: Write the proportion equation
288,305.15 : 397,858.73 = 157,482.91 : x - Step 2: Convert to fraction form
288,305.15/397,858.73 = 157,482.91/x - Step 3: Cross multiply
288,305.15x = 397,858.73 × 157,482.91 - Step 4: Simplify right side
288,305.15x = 62,655,950,569.30 - Step 5: Solve for x
x = 62,655,950,569.30/288,305.15 - Step 6: Final answer
x = 217,325.12
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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.