Finding the Fourth Proportional to 249,549.72, 344,373.12 and 136,373.28
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Solution
The fourth proportional to 249,549.72, 344,373.12 and 136,373.28 is: 188,192.12
Step by Step Solution
- Step 1: Write the proportion equation
249,549.72 : 344,373.12 = 136,373.28 : x - Step 2: Convert to fraction form
249,549.72/344,373.12 = 136,373.28/x - Step 3: Cross multiply
249,549.72x = 344,373.12 × 136,373.28 - Step 4: Simplify right side
249,549.72x = 46,963,291,918.23 - Step 5: Solve for x
x = 46,963,291,918.23/249,549.72 - Step 6: Final answer
x = 188,192.12
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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.