Finding the Fourth Proportional to 368,602.20, 508,687.40 and 207,467.68
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Solution
The fourth proportional to 368,602.20, 508,687.40 and 207,467.68 is: 286,314.61
Step by Step Solution
- Step 1: Write the proportion equation
368,602.20 : 508,687.40 = 207,467.68 : x - Step 2: Convert to fraction form
368,602.20/508,687.40 = 207,467.68/x - Step 3: Cross multiply
368,602.20x = 508,687.40 × 207,467.68 - Step 4: Simplify right side
368,602.20x = 105,536,194,723.23 - Step 5: Solve for x
x = 105,536,194,723.23/368,602.20 - Step 6: Final answer
x = 286,314.61
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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.