Finding the Fourth Proportional to 316,525.68, 436,813.08 and 173,285.28
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Solution
The fourth proportional to 316,525.68, 436,813.08 and 173,285.28 is: 239,137.87
Step by Step Solution
- Step 1: Write the proportion equation
316,525.68 : 436,813.08 = 173,285.28 : x - Step 2: Convert to fraction form
316,525.68/436,813.08 = 173,285.28/x - Step 3: Cross multiply
316,525.68x = 436,813.08 × 173,285.28 - Step 4: Simplify right side
316,525.68x = 75,693,276,875.46 - Step 5: Solve for x
x = 75,693,276,875.46/316,525.68 - Step 6: Final answer
x = 239,137.87
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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.