Finding the Fourth Proportional to 438,132.80, 657,490.80 and 248,592.80
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Solution
The fourth proportional to 438,132.80, 657,490.80 and 248,592.80 is: 373,054.65
Step by Step Solution
- Step 1: Write the proportion equation
438,132.80 : 657,490.80 = 248,592.80 : x - Step 2: Convert to fraction form
438,132.80/657,490.80 = 248,592.80/x - Step 3: Cross multiply
438,132.80x = 657,490.80 × 248,592.80 - Step 4: Simplify right side
438,132.80x = 163,447,478,946.24 - Step 5: Solve for x
x = 163,447,478,946.24/438,132.80 - Step 6: Final answer
x = 373,054.65
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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.