Finding the Fourth Proportional to 216,898.96, 299,317.08 and 121,405.36
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Solution
The fourth proportional to 216,898.96, 299,317.08 and 121,405.36 is: 167,537.45
Step by Step Solution
- Step 1: Write the proportion equation
216,898.96 : 299,317.08 = 121,405.36 : x - Step 2: Convert to fraction form
216,898.96/299,317.08 = 121,405.36/x - Step 3: Cross multiply
216,898.96x = 299,317.08 × 121,405.36 - Step 4: Simplify right side
216,898.96x = 36,338,697,851.55 - Step 5: Solve for x
x = 36,338,697,851.55/216,898.96 - Step 6: Final answer
x = 167,537.45
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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.