Finding the Fourth Proportional to 423,008.79, 634,479.54 and 170,110.99
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Solution
The fourth proportional to 423,008.79, 634,479.54 and 170,110.99 is: 255,152.95
Step by Step Solution
- Step 1: Write the proportion equation
423,008.79 : 634,479.54 = 170,110.99 : x - Step 2: Convert to fraction form
423,008.79/634,479.54 = 170,110.99/x - Step 3: Cross multiply
423,008.79x = 634,479.54 × 170,110.99 - Step 4: Simplify right side
423,008.79x = 107,931,942,684.15 - Step 5: Solve for x
x = 107,931,942,684.15/423,008.79 - Step 6: Final answer
x = 255,152.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.