Finding the Fourth Proportional to 423,129.49, 634,753.50 and 123,631.99
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Solution
The fourth proportional to 423,129.49, 634,753.50 and 123,631.99 is: 185,465.30
Step by Step Solution
- Step 1: Write the proportion equation
423,129.49 : 634,753.50 = 123,631.99 : x - Step 2: Convert to fraction form
423,129.49/634,753.50 = 123,631.99/x - Step 3: Cross multiply
423,129.49x = 634,753.50 × 123,631.99 - Step 4: Simplify right side
423,129.49x = 78,475,838,364.47 - Step 5: Solve for x
x = 78,475,838,364.47/423,129.49 - Step 6: Final answer
x = 185,465.30
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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.