Finding the Fourth Proportional to 316,877.63, 475,345.73 and 103,646.75
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Solution
The fourth proportional to 316,877.63, 475,345.73 and 103,646.75 is: 155,479.70
Step by Step Solution
- Step 1: Write the proportion equation
316,877.63 : 475,345.73 = 103,646.75 : x - Step 2: Convert to fraction form
316,877.63/475,345.73 = 103,646.75/x - Step 3: Cross multiply
316,877.63x = 475,345.73 × 103,646.75 - Step 4: Simplify right side
316,877.63x = 49,268,037,923.27 - Step 5: Solve for x
x = 49,268,037,923.27/316,877.63 - Step 6: Final answer
x = 155,479.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.