Finding the Fourth Proportional to 180,631.98, 249,035.82 and 155,409.29
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Solution
The fourth proportional to 180,631.98, 249,035.82 and 155,409.29 is: 214,261.50
Step by Step Solution
- Step 1: Write the proportion equation
180,631.98 : 249,035.82 = 155,409.29 : x - Step 2: Convert to fraction form
180,631.98/249,035.82 = 155,409.29/x - Step 3: Cross multiply
180,631.98x = 249,035.82 × 155,409.29 - Step 4: Simplify right side
180,631.98x = 38,702,478,725.59 - Step 5: Solve for x
x = 38,702,478,725.59/180,631.98 - Step 6: Final answer
x = 214,261.50
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1.5x scale
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.