Finding the Fourth Proportional to 405,236.63, 607,854.95 and 155,860.31
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Solution
The fourth proportional to 405,236.63, 607,854.95 and 155,860.31 is: 233,790.47
Step by Step Solution
- Step 1: Write the proportion equation
405,236.63 : 607,854.95 = 155,860.31 : x - Step 2: Convert to fraction form
405,236.63/607,854.95 = 155,860.31/x - Step 3: Cross multiply
405,236.63x = 607,854.95 × 155,860.31 - Step 4: Simplify right side
405,236.63x = 94,740,462,266.85 - Step 5: Solve for x
x = 94,740,462,266.85/405,236.63 - Step 6: Final answer
x = 233,790.47
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1.5x scale
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.