Finding the Fourth Proportional to 152,396.88, 210,309.91 and 87,864.99
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Solution
The fourth proportional to 152,396.88, 210,309.91 and 87,864.99 is: 121,254.96
Step by Step Solution
- Step 1: Write the proportion equation
152,396.88 : 210,309.91 = 87,864.99 : x - Step 2: Convert to fraction form
152,396.88/210,309.91 = 87,864.99/x - Step 3: Cross multiply
152,396.88x = 210,309.91 × 87,864.99 - Step 4: Simplify right side
152,396.88x = 18,478,877,919.39 - Step 5: Solve for x
x = 18,478,877,919.39/152,396.88 - Step 6: Final answer
x = 121,254.96
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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.