Finding the Fourth Proportional to 316,455.18, 436,699.50 and 180,486.06
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Solution
The fourth proportional to 316,455.18, 436,699.50 and 180,486.06 is: 249,065.83
Step by Step Solution
- Step 1: Write the proportion equation
316,455.18 : 436,699.50 = 180,486.06 : x - Step 2: Convert to fraction form
316,455.18/436,699.50 = 180,486.06/x - Step 3: Cross multiply
316,455.18x = 436,699.50 × 180,486.06 - Step 4: Simplify right side
316,455.18x = 78,818,172,158.97 - Step 5: Solve for x
x = 78,818,172,158.97/316,455.18 - Step 6: Final answer
x = 249,065.83
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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.