Finding the Fourth Proportional to 423,815.58, 635,653.47 and 139,509.84
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Solution
The fourth proportional to 423,815.58, 635,653.47 and 139,509.84 is: 209,241.75
Step by Step Solution
- Step 1: Write the proportion equation
423,815.58 : 635,653.47 = 139,509.84 : x - Step 2: Convert to fraction form
423,815.58/635,653.47 = 139,509.84/x - Step 3: Cross multiply
423,815.58x = 635,653.47 × 139,509.84 - Step 4: Simplify right side
423,815.58x = 88,679,913,895.14 - Step 5: Solve for x
x = 88,679,913,895.14/423,815.58 - Step 6: Final answer
x = 209,241.75
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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.