Finding the Fourth Proportional to 390,277.01, 585,454.67 and 105,971.87
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Solution
The fourth proportional to 390,277.01, 585,454.67 and 105,971.87 is: 158,968.44
Step by Step Solution
- Step 1: Write the proportion equation
390,277.01 : 585,454.67 = 105,971.87 : x - Step 2: Convert to fraction form
390,277.01/585,454.67 = 105,971.87/x - Step 3: Cross multiply
390,277.01x = 585,454.67 × 105,971.87 - Step 4: Simplify right side
390,277.01x = 62,041,726,180.13 - Step 5: Solve for x
x = 62,041,726,180.13/390,277.01 - Step 6: Final answer
x = 158,968.44
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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.