Finding the Fourth Proportional to 318,929.46, 440,120.61 and 175,686.18
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Solution
The fourth proportional to 318,929.46, 440,120.61 and 175,686.18 is: 242,445.80
Step by Step Solution
- Step 1: Write the proportion equation
318,929.46 : 440,120.61 = 175,686.18 : x - Step 2: Convert to fraction form
318,929.46/440,120.61 = 175,686.18/x - Step 3: Cross multiply
318,929.46x = 440,120.61 × 175,686.18 - Step 4: Simplify right side
318,929.46x = 77,323,108,710.17 - Step 5: Solve for x
x = 77,323,108,710.17/318,929.46 - Step 6: Final answer
x = 242,445.80
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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.