Finding the Fourth Proportional to 249,427.12, 374,177.58 and 91,643.28
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Solution
The fourth proportional to 249,427.12, 374,177.58 and 91,643.28 is: 137,478.48
Step by Step Solution
- Step 1: Write the proportion equation
249,427.12 : 374,177.58 = 91,643.28 : x - Step 2: Convert to fraction form
249,427.12/374,177.58 = 91,643.28/x - Step 3: Cross multiply
249,427.12x = 374,177.58 × 91,643.28 - Step 4: Simplify right side
249,427.12x = 34,290,860,733.66 - Step 5: Solve for x
x = 34,290,860,733.66/249,427.12 - Step 6: Final answer
x = 137,478.48
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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.