Finding the Fourth Proportional to 249,814.40, 344,752.08 and 136,637.12
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Solution
The fourth proportional to 249,814.40, 344,752.08 and 136,637.12 is: 188,563.72
Step by Step Solution
- Step 1: Write the proportion equation
249,814.40 : 344,752.08 = 136,637.12 : x - Step 2: Convert to fraction form
249,814.40/344,752.08 = 136,637.12/x - Step 3: Cross multiply
249,814.40x = 344,752.08 × 136,637.12 - Step 4: Simplify right side
249,814.40x = 47,105,931,325.21 - Step 5: Solve for x
x = 47,105,931,325.21/249,814.40 - Step 6: Final answer
x = 188,563.72
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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.