Finding the Fourth Proportional to 318,145.32, 439,038.36 and 174,901.68
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Solution
The fourth proportional to 318,145.32, 439,038.36 and 174,901.68 is: 241,363.12
Step by Step Solution
- Step 1: Write the proportion equation
318,145.32 : 439,038.36 = 174,901.68 : x - Step 2: Convert to fraction form
318,145.32/439,038.36 = 174,901.68/x - Step 3: Cross multiply
318,145.32x = 439,038.36 × 174,901.68 - Step 4: Simplify right side
318,145.32x = 76,788,546,748.44 - Step 5: Solve for x
x = 76,788,546,748.44/318,145.32 - Step 6: Final answer
x = 241,363.12
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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.