Finding the Fourth Proportional to 286,228.18, 429,539.12 and 99,239.68
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Solution
The fourth proportional to 286,228.18, 429,539.12 and 99,239.68 is: 148,927.77
Step by Step Solution
- Step 1: Write the proportion equation
286,228.18 : 429,539.12 = 99,239.68 : x - Step 2: Convert to fraction form
286,228.18/429,539.12 = 99,239.68/x - Step 3: Cross multiply
286,228.18x = 429,539.12 × 99,239.68 - Step 4: Simplify right side
286,228.18x = 42,627,324,816.28 - Step 5: Solve for x
x = 42,627,324,816.28/286,228.18 - Step 6: Final answer
x = 148,927.77
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1.5x scale
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.