Finding the Fourth Proportional to 318,742.81, 439,881.24 and 180,931.44
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Solution
The fourth proportional to 318,742.81, 439,881.24 and 180,931.44 is: 249,694.56
Step by Step Solution
- Step 1: Write the proportion equation
318,742.81 : 439,881.24 = 180,931.44 : x - Step 2: Convert to fraction form
318,742.81/439,881.24 = 180,931.44/x - Step 3: Cross multiply
318,742.81x = 439,881.24 × 180,931.44 - Step 4: Simplify right side
318,742.81x = 79,588,346,182.19 - Step 5: Solve for x
x = 79,588,346,182.19/318,742.81 - Step 6: Final answer
x = 249,694.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.