Finding the Fourth Proportional to 216,881.55, 299,313.63 and 159,781.95
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Solution
The fourth proportional to 216,881.55, 299,313.63 and 159,781.95 is: 220,511.68
Step by Step Solution
- Step 1: Write the proportion equation
216,881.55 : 299,313.63 = 159,781.95 : x - Step 2: Convert to fraction form
216,881.55/299,313.63 = 159,781.95/x - Step 3: Cross multiply
216,881.55x = 299,313.63 × 159,781.95 - Step 4: Simplify right side
216,881.55x = 47,824,915,462.98 - Step 5: Solve for x
x = 47,824,915,462.98/216,881.55 - Step 6: Final answer
x = 220,511.68
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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.