Finding the Fourth Proportional to 318,781.68, 439,885.27 and 180,916.71
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Solution
The fourth proportional to 318,781.68, 439,885.27 and 180,916.71 is: 249,646.07
Step by Step Solution
- Step 1: Write the proportion equation
318,781.68 : 439,885.27 = 180,916.71 : x - Step 2: Convert to fraction form
318,781.68/439,885.27 = 180,916.71/x - Step 3: Cross multiply
318,781.68x = 439,885.27 × 180,916.71 - Step 4: Simplify right side
318,781.68x = 79,582,594,402.44 - Step 5: Solve for x
x = 79,582,594,402.44/318,781.68 - Step 6: Final answer
x = 249,646.07
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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.