Finding the Fourth Proportional to 310,899.18, 466,349.53 and 86,271.68
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Solution
The fourth proportional to 310,899.18, 466,349.53 and 86,271.68 is: 129,407.73
Step by Step Solution
- Step 1: Write the proportion equation
310,899.18 : 466,349.53 = 86,271.68 : x - Step 2: Convert to fraction form
310,899.18/466,349.53 = 86,271.68/x - Step 3: Cross multiply
310,899.18x = 466,349.53 × 86,271.68 - Step 4: Simplify right side
310,899.18x = 40,232,757,420.31 - Step 5: Solve for x
x = 40,232,757,420.31/310,899.18 - Step 6: Final answer
x = 129,407.73
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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.