Finding the Fourth Proportional to 318,373.15, 439,352.49 and 175,130.05
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Solution
The fourth proportional to 318,373.15, 439,352.49 and 175,130.05 is: 241,678.12
Step by Step Solution
- Step 1: Write the proportion equation
318,373.15 : 439,352.49 = 175,130.05 : x - Step 2: Convert to fraction form
318,373.15/439,352.49 = 175,130.05/x - Step 3: Cross multiply
318,373.15x = 439,352.49 × 175,130.05 - Step 4: Simplify right side
318,373.15x = 76,943,823,541.32 - Step 5: Solve for x
x = 76,943,823,541.32/318,373.15 - Step 6: Final answer
x = 241,678.12
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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.