Finding the Fourth Proportional to 152,405.68, 210,315.08 and 84,419.92
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Solution
The fourth proportional to 152,405.68, 210,315.08 and 84,419.92 is: 116,496.85
Step by Step Solution
- Step 1: Write the proportion equation
152,405.68 : 210,315.08 = 84,419.92 : x - Step 2: Convert to fraction form
152,405.68/210,315.08 = 84,419.92/x - Step 3: Cross multiply
152,405.68x = 210,315.08 × 84,419.92 - Step 4: Simplify right side
152,405.68x = 17,754,782,228.39 - Step 5: Solve for x
x = 17,754,782,228.39/152,405.68 - Step 6: Final answer
x = 116,496.85
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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.