Finding the Fourth Proportional to 338,328.18, 506,089.71 and 257,756.49
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Solution
The fourth proportional to 338,328.18, 506,089.71 and 257,756.49 is: 385,566.19
Step by Step Solution
- Step 1: Write the proportion equation
338,328.18 : 506,089.71 = 257,756.49 : x - Step 2: Convert to fraction form
338,328.18/506,089.71 = 257,756.49/x - Step 3: Cross multiply
338,328.18x = 506,089.71 × 257,756.49 - Step 4: Simplify right side
338,328.18x = 130,447,907,274.72 - Step 5: Solve for x
x = 130,447,907,274.72/338,328.18 - Step 6: Final answer
x = 385,566.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.