Finding the Fourth Proportional to 390,269.86, 585,601.62 and 153,782.26
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Solution
The fourth proportional to 390,269.86, 585,601.62 and 153,782.26 is: 230,750.95
Step by Step Solution
- Step 1: Write the proportion equation
390,269.86 : 585,601.62 = 153,782.26 : x - Step 2: Convert to fraction form
390,269.86/585,601.62 = 153,782.26/x - Step 3: Cross multiply
390,269.86x = 585,601.62 × 153,782.26 - Step 4: Simplify right side
390,269.86x = 90,055,140,583.26 - Step 5: Solve for x
x = 90,055,140,583.26/390,269.86 - Step 6: Final answer
x = 230,750.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.