Finding the Fourth Proportional to 318,347.42, 439,312.28 and 175,104.32
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Solution
The fourth proportional to 318,347.42, 439,312.28 and 175,104.32 is: 241,640.02
Step by Step Solution
- Step 1: Write the proportion equation
318,347.42 : 439,312.28 = 175,104.32 : x - Step 2: Convert to fraction form
318,347.42/439,312.28 = 175,104.32/x - Step 3: Cross multiply
318,347.42x = 439,312.28 × 175,104.32 - Step 4: Simplify right side
318,347.42x = 76,925,478,057.05 - Step 5: Solve for x
x = 76,925,478,057.05/318,347.42 - Step 6: Final answer
x = 241,640.02
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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.