Finding the Fourth Proportional to 493,755.12, 740,632.68 and 138,805.02
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Solution
The fourth proportional to 493,755.12, 740,632.68 and 138,805.02 is: 208,207.53
Step by Step Solution
- Step 1: Write the proportion equation
493,755.12 : 740,632.68 = 138,805.02 : x - Step 2: Convert to fraction form
493,755.12/740,632.68 = 138,805.02/x - Step 3: Cross multiply
493,755.12x = 740,632.68 × 138,805.02 - Step 4: Simplify right side
493,755.12x = 102,803,533,960.05 - Step 5: Solve for x
x = 102,803,533,960.05/493,755.12 - Step 6: Final answer
x = 208,207.53
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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.