Finding the Fourth Proportional to 313,865.66, 432,994.74 and 209,118.08
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Solution
The fourth proportional to 313,865.66, 432,994.74 and 209,118.08 is: 288,489.76
Step by Step Solution
- Step 1: Write the proportion equation
313,865.66 : 432,994.74 = 209,118.08 : x - Step 2: Convert to fraction form
313,865.66/432,994.74 = 209,118.08/x - Step 3: Cross multiply
313,865.66x = 432,994.74 × 209,118.08 - Step 4: Simplify right side
313,865.66x = 90,547,028,678.90 - Step 5: Solve for x
x = 90,547,028,678.90/313,865.66 - Step 6: Final answer
x = 288,489.76
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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.