Finding the Fourth Proportional to 355,970.68, 491,417.28 and 205,038.52
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Solution
The fourth proportional to 355,970.68, 491,417.28 and 205,038.52 is: 283,055.54
Step by Step Solution
- Step 1: Write the proportion equation
355,970.68 : 491,417.28 = 205,038.52 : x - Step 2: Convert to fraction form
355,970.68/491,417.28 = 205,038.52/x - Step 3: Cross multiply
355,970.68x = 491,417.28 × 205,038.52 - Step 4: Simplify right side
355,970.68x = 100,759,471,793.63 - Step 5: Solve for x
x = 100,759,471,793.63/355,970.68 - Step 6: Final answer
x = 283,055.54
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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.