Finding the Fourth Proportional to 368,946.66, 509,259.30 and 216,020.70
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Solution
The fourth proportional to 368,946.66, 509,259.30 and 216,020.70 is: 298,174.68
Step by Step Solution
- Step 1: Write the proportion equation
368,946.66 : 509,259.30 = 216,020.70 : x - Step 2: Convert to fraction form
368,946.66/509,259.30 = 216,020.70/x - Step 3: Cross multiply
368,946.66x = 509,259.30 × 216,020.70 - Step 4: Simplify right side
368,946.66x = 110,010,550,467.51 - Step 5: Solve for x
x = 110,010,550,467.51/368,946.66 - Step 6: Final answer
x = 298,174.68
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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.