Finding the Fourth Proportional to 318,332.68, 439,290.47 and 180,536.90
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Solution
The fourth proportional to 318,332.68, 439,290.47 and 180,536.90 is: 249,136.03
Step by Step Solution
- Step 1: Write the proportion equation
318,332.68 : 439,290.47 = 180,536.90 : x - Step 2: Convert to fraction form
318,332.68/439,290.47 = 180,536.90/x - Step 3: Cross multiply
318,332.68x = 439,290.47 × 180,536.90 - Step 4: Simplify right side
318,332.68x = 79,308,137,908.23 - Step 5: Solve for x
x = 79,308,137,908.23/318,332.68 - Step 6: Final answer
x = 249,136.03
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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.