Finding the Fourth Proportional to 249,946.58, 344,917.74 and 142,551.21
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Solution
The fourth proportional to 249,946.58, 344,917.74 and 142,551.21 is: 196,715.80
Step by Step Solution
- Step 1: Write the proportion equation
249,946.58 : 344,917.74 = 142,551.21 : x - Step 2: Convert to fraction form
249,946.58/344,917.74 = 142,551.21/x - Step 3: Cross multiply
249,946.58x = 344,917.74 × 142,551.21 - Step 4: Simplify right side
249,946.58x = 49,168,440,711.53 - Step 5: Solve for x
x = 49,168,440,711.53/249,946.58 - Step 6: Final answer
x = 196,715.80
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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.