Finding the Fourth Proportional to 291,045.16, 436,567.86 and 130,934.08
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Solution
The fourth proportional to 291,045.16, 436,567.86 and 130,934.08 is: 196,401.17
Step by Step Solution
- Step 1: Write the proportion equation
291,045.16 : 436,567.86 = 130,934.08 : x - Step 2: Convert to fraction form
291,045.16/436,567.86 = 130,934.08/x - Step 3: Cross multiply
291,045.16x = 436,567.86 × 130,934.08 - Step 4: Simplify right side
291,045.16x = 57,161,611,106.67 - Step 5: Solve for x
x = 57,161,611,106.67/291,045.16 - Step 6: Final answer
x = 196,401.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.