Finding the Fourth Proportional to 243,977.09, 336,688.33 and 136,547.12
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Solution
The fourth proportional to 243,977.09, 336,688.33 and 136,547.12 is: 188,434.99
Step by Step Solution
- Step 1: Write the proportion equation
243,977.09 : 336,688.33 = 136,547.12 : x - Step 2: Convert to fraction form
243,977.09/336,688.33 = 136,547.12/x - Step 3: Cross multiply
243,977.09x = 336,688.33 × 136,547.12 - Step 4: Simplify right side
243,977.09x = 45,973,820,115.67 - Step 5: Solve for x
x = 45,973,820,115.67/243,977.09 - Step 6: Final answer
x = 188,434.99
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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.