Finding the Fourth Proportional to 249,580.74, 344,421.40 and 136,403.49
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Solution
The fourth proportional to 249,580.74, 344,421.40 and 136,403.49 is: 188,236.80
Step by Step Solution
- Step 1: Write the proportion equation
249,580.74 : 344,421.40 = 136,403.49 : x - Step 2: Convert to fraction form
249,580.74/344,421.40 = 136,403.49/x - Step 3: Cross multiply
249,580.74x = 344,421.40 × 136,403.49 - Step 4: Simplify right side
249,580.74x = 46,980,280,990.69 - Step 5: Solve for x
x = 46,980,280,990.69/249,580.74 - Step 6: Final answer
x = 188,236.80
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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.