Finding the Fourth Proportional to 318,926.96, 440,117.16 and 175,683.68
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Solution
The fourth proportional to 318,926.96, 440,117.16 and 175,683.68 is: 242,442.35
Step by Step Solution
- Step 1: Write the proportion equation
318,926.96 : 440,117.16 = 175,683.68 : x - Step 2: Convert to fraction form
318,926.96/440,117.16 = 175,683.68/x - Step 3: Cross multiply
318,926.96x = 440,117.16 × 175,683.68 - Step 4: Simplify right side
318,926.96x = 77,321,402,299.95 - Step 5: Solve for x
x = 77,321,402,299.95/318,926.96 - Step 6: Final answer
x = 242,442.35
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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.