Finding the Fourth Proportional to 369,203.88, 509,503.68 and 216,332.40
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Solution
The fourth proportional to 369,203.88, 509,503.68 and 216,332.40 is: 298,540.07
Step by Step Solution
- Step 1: Write the proportion equation
369,203.88 : 509,503.68 = 216,332.40 : x - Step 2: Convert to fraction form
369,203.88/509,503.68 = 216,332.40/x - Step 3: Cross multiply
369,203.88x = 509,503.68 × 216,332.40 - Step 4: Simplify right side
369,203.88x = 110,222,153,903.23 - Step 5: Solve for x
x = 110,222,153,903.23/369,203.88 - Step 6: Final answer
x = 298,540.07
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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.