Finding the Fourth Proportional to 390,270.36, 585,602.37 and 153,782.76
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Solution
The fourth proportional to 390,270.36, 585,602.37 and 153,782.76 is: 230,751.70
Step by Step Solution
- Step 1: Write the proportion equation
390,270.36 : 585,602.37 = 153,782.76 : x - Step 2: Convert to fraction form
390,270.36/585,602.37 = 153,782.76/x - Step 3: Cross multiply
390,270.36x = 585,602.37 × 153,782.76 - Step 4: Simplify right side
390,270.36x = 90,055,548,721.14 - Step 5: Solve for x
x = 90,055,548,721.14/390,270.36 - Step 6: Final answer
x = 230,751.70
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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.