Finding the Fourth Proportional to 318,813.68, 439,959.56 and 175,570.68
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Solution
The fourth proportional to 318,813.68, 439,959.56 and 175,570.68 is: 242,285.71
Step by Step Solution
- Step 1: Write the proportion equation
318,813.68 : 439,959.56 = 175,570.68 : x - Step 2: Convert to fraction form
318,813.68/439,959.56 = 175,570.68/x - Step 3: Cross multiply
318,813.68x = 439,959.56 × 175,570.68 - Step 4: Simplify right side
318,813.68x = 77,243,999,121.70 - Step 5: Solve for x
x = 77,243,999,121.70/318,813.68 - Step 6: Final answer
x = 242,285.71
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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.