Finding the Fourth Proportional to 276,681.66, 381,816.63 and 155,823.18
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Solution
The fourth proportional to 276,681.66, 381,816.63 and 155,823.18 is: 215,033.70
Step by Step Solution
- Step 1: Write the proportion equation
276,681.66 : 381,816.63 = 155,823.18 : x - Step 2: Convert to fraction form
276,681.66/381,816.63 = 155,823.18/x - Step 3: Cross multiply
276,681.66x = 381,816.63 × 155,823.18 - Step 4: Simplify right side
276,681.66x = 59,495,881,463.48 - Step 5: Solve for x
x = 59,495,881,463.48/276,681.66 - Step 6: Final answer
x = 215,033.70
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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.