Finding the Fourth Proportional to 318,345.98, 439,308.20 and 175,105.99
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Solution
The fourth proportional to 318,345.98, 439,308.20 and 175,105.99 is: 241,641.17
Step by Step Solution
- Step 1: Write the proportion equation
318,345.98 : 439,308.20 = 175,105.99 : x - Step 2: Convert to fraction form
318,345.98/439,308.20 = 175,105.99/x - Step 3: Cross multiply
318,345.98x = 439,308.20 × 175,105.99 - Step 4: Simplify right side
318,345.98x = 76,925,494,204.05 - Step 5: Solve for x
x = 76,925,494,204.05/318,345.98 - Step 6: Final answer
x = 241,641.17
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1.5x scale
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.