Finding the Fourth Proportional to 370,913.86, 511,807.26 and 207,569.58
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Solution
The fourth proportional to 370,913.86, 511,807.26 and 207,569.58 is: 286,415.88
Step by Step Solution
- Step 1: Write the proportion equation
370,913.86 : 511,807.26 = 207,569.58 : x - Step 2: Convert to fraction form
370,913.86/511,807.26 = 207,569.58/x - Step 3: Cross multiply
370,913.86x = 511,807.26 × 207,569.58 - Step 4: Simplify right side
370,913.86x = 106,235,617,999.15 - Step 5: Solve for x
x = 106,235,617,999.15/370,913.86 - Step 6: Final answer
x = 286,415.88
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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.