Finding the Fourth Proportional to 249,617.60, 344,477.28 and 136,445.12
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Solution
The fourth proportional to 249,617.60, 344,477.28 and 136,445.12 is: 188,296.99
Step by Step Solution
- Step 1: Write the proportion equation
249,617.60 : 344,477.28 = 136,445.12 : x - Step 2: Convert to fraction form
249,617.60/344,477.28 = 136,445.12/x - Step 3: Cross multiply
249,617.60x = 344,477.28 × 136,445.12 - Step 4: Simplify right side
249,617.60x = 47,002,243,806.87 - Step 5: Solve for x
x = 47,002,243,806.87/249,617.60 - Step 6: Final answer
x = 188,296.99
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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.