Finding the Fourth Proportional to 320,717.98, 442,560.75 and 191,630.75
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Solution
The fourth proportional to 320,717.98, 442,560.75 and 191,630.75 is: 264,432.48
Step by Step Solution
- Step 1: Write the proportion equation
320,717.98 : 442,560.75 = 191,630.75 : x - Step 2: Convert to fraction form
320,717.98/442,560.75 = 191,630.75/x - Step 3: Cross multiply
320,717.98x = 442,560.75 × 191,630.75 - Step 4: Simplify right side
320,717.98x = 84,808,248,443.06 - Step 5: Solve for x
x = 84,808,248,443.06/320,717.98 - Step 6: Final answer
x = 264,432.48
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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.